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Abstracts of Patents of the Northern Regional Research Laboratory, Peoria, Illinois, January-December 1951
United States. Agricultural Research Service. Northern Regional Research Laboratory
出版
Bureau of Agricultural and Industrial Chemistry, Agricultural Research Administration, U.S. Department of Agriculture
, 1952
URL
http://books.google.com.hk/books?id=MRFY0AEACAAJ&hl=&source=gbs_api