Comparison of purebred and grade dairy cows
By: by J.C. McDowell
Series: Circular / United States Department of Agriculture -- no. 26; Circular (United States. Dept. of Agriculture) -- no. 26.
Publisher: U.S. Dept. of Agriculture
Published: 1928
Place of publication: Washington, D.C
Language: eng
Subjects: Dairy cattle; Grading; Milk yield
Notes: Caption title.

"Contribution from Bureau of Dairy Industry."