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Conference Report on the Contribution of Extension Methods and Techniques Toward the Rehabilitation of War-torn Countries
United States. Extension Service
其他書名
Washington, D.C., September 19-22, 1944
出版United States Department of agriculture, Extension service and Office of foreign agricultural relations, 1946
URLhttp://books.google.com.hk/books?id=x7kxAAAAIAAJ&hl=&source=gbs_api
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