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Google圖書搜尋
A Directory of Information Resources in the United States: Social Sciences
National Referral Center for Science and Technology (U.S.)
出版
U.S. Government Printing Office
, 1965
URL
http://books.google.com.hk/books?id=Y39PAAAAMAAJ&hl=&source=gbs_api
註釋
USA. Directory of research centres, librarys, documentation centres, etc. In the social sciences.