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Nebraska Livestock and Feed Roundup for 1960-61

Everett E. PetersonFred OlsonTed NelsonDean BrownPaul Quentin Guyer

出版	Extension Service, University of Nebraska College of Agriculture and U.S. Department of Agriculture Cooperating, 1960
URL	http://books.google.com.hk/books?id=0poYzgEACAAJ&hl=&source=gbs_api