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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.