Cita APA (7a ed.)

McKay, G. L., & Larsen, C. (1922). Principles and practice of butter - making. John Wiley.

Cita Chicago Style (17a ed.)

McKay, G. L., y C. Larsen. Principles and Practice of Butter - Making. New York: John Wiley, 1922.

Cita MLA (8a ed.)

McKay, G. L., y C. Larsen. Principles and Practice of Butter - Making. John Wiley, 1922.