APA Alıntı

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

Chicago Stili Alıntı

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

MLA Alıntı

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