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Organizing for Using Research in Extension
United States. Federal Extension Service
其他書名
Summary of an Extension Research Workshop, May 6-10, 1957. Washington, D.C.
出版U.S. Government Printing Office, 1957
URLhttp://books.google.com.hk/books?id=7jAiAQAAMAAJ&hl=&source=gbs_api
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