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  篇名 作者 主题词 文摘
          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z    
     
 
NAM Publications  ( 1 Titles / 29 Abstracts )
NATO Headquarters  ( 1 Titles / 140 Abstracts )
NC State University  ( 2 Titles / 61 Abstracts )
NDT Internet Publishing  ( 1 Titles / 432 Abstracts )
NEC Corporation  ( 2 Titles / 85 Abstracts )
NH Bar Association  ( 1 Titles / 224 Abstracts )
NISC Pty Ltd  ( 3 Titles / 2,531 Abstracts )
NMFS Scientific Publications  ( 0 Titles / 130 Abstracts )
NOAA Public Affairs  ( 1 Titles / 177 Abstracts )
NOW Communications Inc.  ( 1 Titles / 3,959 Abstracts )
NRC Research Press  ( 16 Titles / 3,232 Abstracts )
NUS Press Pte Ltd  ( 2 Titles / 160 Abstracts )
NY Arts  ( 1 Titles / 2,363 Abstracts )
NYU Annual Survey of American Law  ( 1 Titles / 104 Abstracts )
Nagasaki University School of Medicine  ( 1 Titles / 110 Abstracts )
Nagoya University  ( 2 Titles / 95 Abstracts )
Narr Francke Attempto Verlag GmbH + Co. KG  ( 16 Titles / 4,799 Abstracts )
Nasa  ( 1 Titles / 59 Abstracts )
National Academy of Sciences of the USA  ( 1 Titles / 43,496 Abstracts )
National Academy of Sciences, USA  ( 1 Titles / 164 Abstracts )
National Advisory Committee on Computing Qualifications  ( 0 Titles / 87 Abstracts )
National Association of Convenience Stores  ( 1 Titles / 266 Abstracts )
National Association of Industrial Technology  ( 0 Titles / 81 Abstracts )
National Association of Insurance and Financial Advisors  ( 1 Titles / 899 Abstracts )
National Association of Realtors  ( 1 Titles / 175 Abstracts )
National Association of Social Workers  ( 1 Titles / 362 Abstracts )
National Association of Student Financial Aid Administrators  ( 1 Titles / 25 Abstracts )
National Association of Student Personnel Administrators  ( 1 Titles / 233 Abstracts )
National Association of Teacher Educators for Family and Consumer S..  ( 1 Titles / 26 Abstracts )
National Astronomical Observatories  ( 1 Titles / 67 Abstracts )
National Athletic Trainers' Association  ( 2 Titles / 322 Abstracts )
National Automobile Club  ( 1 Titles / 16 Abstracts )
National Biodiesel Board  ( 1 Titles / 353 Abstracts )
National Botanic Garden of Belgium  ( 1 Titles / 287 Abstracts )
National Center for American Indian and Alaska Native Mental Health..  ( 1 Titles / 58 Abstracts )
National Center for Education Statistics  ( 1 Titles / 189 Abstracts )
National Center for Online Learning Research  ( 1 Titles / 116 Abstracts )
National Center for Public Policy and Higher Education  ( 1 Titles / 122 Abstracts )
National Centre for Development Studies  ( 1 Titles / 26 Abstracts )
National Centre for Maps and Cartographic Heritage  ( 1 Titles / 57 Abstracts )
National Committee on Planned Giving  ( 2 Titles / 105 Abstracts )
National Defence Industrial Association  ( 1 Titles / 2,364 Abstracts )
National Education Association  ( 1 Titles / 515 Abstracts )
National Federation of Independent Business  ( 1 Titles / 1,141 Abstracts )
National Federation of the Blind  ( 3 Titles / 611 Abstracts )
National Folk Museum of Korea  ( 1 Titles / 5 Abstracts )
National Folklore Support Centre  ( 3 Titles / 16 Abstracts )
National Foreign Language Resource Center  ( 1 Titles / 91 Abstracts )
National Foundation for Infectious Diseases  ( 1 Titles / 77 Abstracts )
National Heritage Board, Singapore  ( 1 Titles / 12 Abstracts )
National Housing Institute  ( 1 Titles / 160 Abstracts )
National Information System for Science & Technology  ( 1 Titles / 17 Abstracts )
National Institute for R&D in Informatics  ( 1 Titles / 262 Abstracts )
National Institute of Adult Continuing Education  ( 3 Titles / 550 Abstracts )
National Institute of Industrial Health  ( 0 Titles / 142 Abstracts )
National Institute of Infectious Diseases  ( 1 Titles / 652 Abstracts )
National Institute of Informatics  ( 1 Titles / 83 Abstracts )
National Institute of Information and Communications Technology  ( 1 Titles / 236 Abstracts )
National Institute of Justice  ( 1 Titles / 60 Abstracts )
National Institute of Polar Research  ( 2 Titles / 110 Abstracts )
National Institute of Science Communication and Information Resources  ( 7 Titles / 1,640 Abstracts )
National Institute on Alcohol Abuse and Alcoholism  ( 1 Titles / 68 Abstracts )
National Institute on Drug Abuse  ( 2 Titles / 309 Abstracts )
National Interest  ( 1 Titles / 242 Abstracts )
National Journal Group Inc  ( 1 Titles / 1,120 Abstracts )
National Medical Association  ( 1 Titles / 1,118 Abstracts )
National Middle School Association  ( 2 Titles / 75 Abstracts )
National Organisation for Women  ( 1 Titles / 196 Abstracts )
National Parent Information Network  ( 1 Titles / 38 Abstracts )
National Park Service  ( 1 Titles / 58 Abstracts )
National Prescribing Centre  ( 3 Titles / 70 Abstracts )
National Radiological Protection Board  ( 1 Titles / 63 Abstracts )
National Research Center for Genetic Engineering and Biotechnology  ( 1 Titles / 82 Abstracts )
National Roofing Contractors Association  ( 1 Titles / 969 Abstracts )
National Rosacea Society  ( 1 Titles / 172 Abstracts )
National School Boards Association  ( 1 Titles / 11 Abstracts )
National Science Foundation  ( 1 Titles / 89 Abstracts )
National Space Science Data Center  ( 1 Titles / 57 Abstracts )
National Speleological Society  ( 2 Titles / 47 Abstracts )
National Statistics  ( 2 Titles / 166 Abstracts )
National Trade Publications Inc.  ( 1 Titles / 41 Abstracts )
National Wildlife Federation  ( 1 Titles / 566 Abstracts )
Natural Hazards Center  ( 1 Titles / 374 Abstracts )
Nature Canada  ( 1 Titles / 136 Abstracts )
Nature Publishing Group  ( 36 Titles / 51,834 Abstracts )
Naval Media Center  ( 1 Titles / 23 Abstracts )
Naval War College Press  ( 1 Titles / 41 Abstracts )
Nebraska Library Association  ( 2 Titles / 39 Abstracts )
Nebraska State Bar Association  ( 1 Titles / 170 Abstracts )
Nelson Publishing  ( 6 Titles / 7,944 Abstracts )
Nencki Institute of Experimental Biology  ( 0 Titles / 200 Abstracts )
Nepal Medical Association  ( 1 Titles / 22 Abstracts )
Network City and Landscape  ( 1 Titles / 23 Abstracts )
Network World, Inc  ( 1 Titles / 4,456 Abstracts )
Neural Computing Surveys  ( 1 Titles / 1 Abstracts )
Neural Information Processing  ( 1 Titles / 45 Abstracts )
NeuroQuantology  ( 1 Titles / 182 Abstracts )
Neurobiology of Lipids  ( 1 Titles / 26 Abstracts )
Neuroendocrinology Letters  ( 1 Titles / 311 Abstracts )
Neuroscience Forum, Nepal  ( 1 Titles / 87 Abstracts )
New Agriculturist  ( 1 Titles / 934 Abstracts )
New Horizons for Learning  ( 1 Titles / 374 Abstracts )
New Times  ( 2 Titles / 16,251 Abstracts )
New Wave Publishing Ltd  ( 1 Titles / 104 Abstracts )
New York State Society of Certified Public Accountants  ( 1 Titles / 1,258 Abstracts )
New York University School of Law  ( 5 Titles / 138 Abstracts )
New York University, Department of Music & Performing Arts  ( 1 Titles / 17 Abstracts )
New Zealand Ecological Society  ( 2 Titles / 251 Abstracts )
New Zealand Family Physician  ( 1 Titles / 470 Abstracts )
New Zealand Society of Physiotherapists  ( 1 Titles / 138 Abstracts )
NewBreed Librarian  ( 1 Titles / 16 Abstracts )
Nickel Development Institute  ( 1 Titles / 187 Abstracts )
Nordic Association of African Studies  ( 1 Titles / 159 Abstracts )
Nordicom  ( 0 Titles / 146 Abstracts )
Noria Corporation  ( 3 Titles / 1,139 Abstracts )
North American Association for the Study of Welsh Culture and History  ( 1 Titles / 17 Abstracts )
North Carolina Institute of Medicine  ( 1 Titles / 467 Abstracts )
North Carolina Sociological Association  ( 1 Titles / 111 Abstracts )
North Carolina State University  ( 5 Titles / 906 Abstracts )
North Carolina State University Herbarium  ( 1 Titles / 28 Abstracts )
North Star  ( 1 Titles / 23 Abstracts )
North Star (Poughkeepsie)  ( 1 Titles / 9 Abstracts )
North Western University  ( 2 Titles / 47 Abstracts )
Northwestern University School of Law  ( 4 Titles / 346 Abstracts )
Norwegian Society of Automatic Control  ( 1 Titles / 17 Abstracts )
Norwegian University of Science and Technology  ( 2 Titles / 26 Abstracts )
Nova Southeastern University  ( 3 Titles / 544 Abstracts )
Nuclear Receptor Signaling Atlas  ( 1 Titles / 54 Abstracts )
NurseWeek Publishing  ( 1 Titles / 77 Abstracts )
Nursing Spectrum Inc  ( 1 Titles / 1,111 Abstracts )
Núcleo de Estudos de Gênero - Pagu  ( 1 Titles / 87 Abstracts )
nRn Publications  ( 0 Titles / 5 Abstracts )