APA (7th ed.) Citation

Eckles, C. H., Keithley, J. R., & Combs, W. B. (1925). Composition of creamery butter and its control. University Farm.

Chicago Style (17th ed.) Citation

Eckles, Clarence H., J. R. Keithley, and Willes Barnes Combs. Composition of Creamery Butter and Its Control. St. Paul, Minn: University Farm, 1925.

MLA (9th ed.) Citation

Eckles, Clarence H., et al. Composition of Creamery Butter and Its Control. University Farm, 1925.