USDA-DHIA cow performance index List, May 1973 registered cows claving between August 1970 and April 1972
Contributors: Keown, Jeffrey Francis, 1945-; Powell, R.L.; King, G.J.; Norman, H.D.; Mcdaniel, B.T.; Dickinson, F.N.
Series: ARS-NE -- 25; ARS--NE -- 25-1.
Publisher: U.S. Dept. of Agriculture
Published: 1973
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 424
Subjects: Cows; Research