APA (7th ed.) Citation

Beckman, T. N., & Maynard, H. H. (1957). Principles of marketing (6th ed.). Ronald Press.

Chicago Style (17th ed.) Citation

Beckman, Theodore N., and Harold Howard Maynard. Principles of Marketing. 6th ed. New York: Ronald Press, 1957.

MLA (9th ed.) Citation

Beckman, Theodore N., and Harold Howard Maynard. Principles of Marketing. 6th ed. Ronald Press, 1957.