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Market Classes and Grades of Calves and Vealers
Don Juan Slater
Edwin LeFevre
Harrison Morton Dixon
Hugh Hammond Bennett
James Ransom Holbert
John Chambers McDowell
John Sutherland Buckley
Mary Katherine Bryan
Paul Russell
Vera Katherine Charles
Charles Holcomb Popenoe
Charles Steven Reddy
Thomas Castor
William Ridgley Chapline
Benjamin Koehler
出版
U.S. Department of Agriculture
, 1928
URL
http://books.google.com.hk/books?id=LIOhAQAACAAJ&hl=&source=gbs_api