Improving your dairy herd through the National cooperative dairy herd improvement program.
Edition: [Rev.
Series: United States. Dept of Agriculture. Farmers' bulletin; no. 2132; Farmers' bulletin (United States. Dept. of Agriculture) ;; no. 2132.
Publisher: For sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1967
Place of publication: Washington
Language: eng
Subjects: Cow testing -- Societies, etc.