Παραπομπή APA

Watson, D. (1978). Price Theory and Its Uses (4th Ed.). Khosla.

Παραπομπή Chicago Style

Watson, Donald. Price Theory and Its Uses. 4th Ed. New Delhi: Khosla, 1978.

Παραπομπή MLA

Watson, Donald. Price Theory and Its Uses. 4th Ed. Khosla, 1978.