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Developing an Autosexing Columbian-patterned Variety of Chickens
George Frelaut Godfrey
R. B. Thompson
Billy Lee Goodman
出版
Oklahoma A. & M. College, Division of Agriculture, Experiment Station
, 1956
URL
http://books.google.com.hk/books?id=Hm4pAQAAMAAJ&hl=&source=gbs_api
