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Outline of Object and Plan of the Nebraska National Egg Laying Contest

E. E. BrackettEdgar Albert BurnettHorace Clyde FilleyJohn Owen RankinJulius Herman FrandsenM. N. Lawritson

出版	Agricultural Experiment Station, The University of Nebraska, 1917
URL	http://books.google.com.hk/books?id=hU9zn6Uj1JQC&hl=&source=gbs_api