Παραπομπή APA

Toousley, R. D. e., & Armstrong, G. (1962). Principles of Marketing.

Παραπομπή Chicago Style

Toousley, Rayburn D,. etc, και Gary Armstrong. Principles of Marketing. :, 1962.

Παραπομπή MLA

Toousley, Rayburn D,. etc, και Gary Armstrong. Principles of Marketing. 1962.