APA (7th ed.) Citation

Macy, H., & Combs, W. B. (1927). Field studies of the sources of mold in butter. Univ. Farm.

Chicago Style (17th ed.) Citation

Macy, Harold, and Willes Barnes Combs. Field Studies of the Sources of Mold in Butter. St. Paul, Minn: Univ. Farm, 1927.

MLA (9th ed.) Citation

Macy, Harold, and Willes Barnes Combs. Field Studies of the Sources of Mold in Butter. Univ. Farm, 1927.