Παραπομπή APA

Mandino, O. (2007). The greatest salesman in the world. Jaico.

Παραπομπή Chicago Style

Mandino, O.G. The Greatest Salesman in the World. Mumbai: Jaico, 2007.

Παραπομπή MLA

Mandino, O.G. The Greatest Salesman in the World. Jaico, 2007.