Παραπομπή APA

Weller, D. G. (1971). Overseas marketing and selling. Pitman.

Παραπομπή Chicago Style

Weller, Don G. Overseas Marketing and Selling. London: Pitman, 1971.

Παραπομπή MLA

Weller, Don G. Overseas Marketing and Selling. Pitman, 1971.