Παραπομπή APA

Lamb Jr., C. . W., & Armstrong, G. (1992). Principles of marketing. South Western.

Παραπομπή Chicago Style

Lamb Jr., Charles W., και Gary Armstrong. Principles of Marketing. Ohio: South Western, 1992.

Παραπομπή MLA

Lamb Jr., Charles W., και Gary Armstrong. Principles of Marketing. South Western, 1992.