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The USDA-DHIA Modified Contemporary Comparison
Allan K. StonerDonald F. WanjuraFrank N. DickinsonJoseph B. Cocke
其他書名
Sire Summary and Cow Index Procedures. 1974-82
出版Agricultural Research Service, U.S. Department of Agriculture, 1974
URLhttp://books.google.com.hk/books?id=n5ylAQAACAAJ&hl=&source=gbs_api