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Persistency of Lactation in Dairy Cows
Charles Bovett Sayre
Ernest Everett De Turk
Foster Floyd Elliott
Frederick Alexander Davidson
Frederick Charles Bauer
Frederick Francis Weinard
George Harlan Dungan
James Lloyd Edmonds
Lacey Fletcher Rickey
Tom Sherman Hamilton
Walter Lee Gaines
William Barbour Nevens
Harold Clayton M. Case
Chalmers Woodruff Crawford
Henry Perly Rusk
Herman Bernard Dorner
Louie Henrie Smith
Philip Augustus Lehenbauer
Robert Cooke Ross
William Leonidas Burlison
Robert Watt Stark
其他書名
A Preliminary Study of Certain Guernsey and Holstein Records
出版
University of Illinois Agricultural Experiment Station
, 1927
URL
http://books.google.com.hk/books?id=uJNRAQAAMAAJ&hl=&source=gbs_api