APA (7th ed.) Citation

United States. Bureau of Dairy Industry. (1940). List of sires proved in dairy herd improvement associations, 1940 [includes data by States and breeds]. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Dairy Industry. List of Sires Proved in Dairy Herd Improvement Associations, 1940 [includes Data by States and Breeds]. [Washington]: [s.n.], 1940.

MLA (9th ed.) Citation

United States. Bureau of Dairy Industry. List of Sires Proved in Dairy Herd Improvement Associations, 1940 [includes Data by States and Breeds]. [s.n.], 1940.