APA (7th ed.) Citation

Willsmer, R. L. (1971). Directing the marketing effort. Staples Press.

Chicago Style (17th ed.) Citation

Willsmer, Ray L. Directing the Marketing Effort. London: Staples Press, 1971.

MLA (9th ed.) Citation

Willsmer, Ray L. Directing the Marketing Effort. Staples Press, 1971.