Παραπομπή APA

Maxwell, J. C. (1999). 21 irrefutable laws of leadership. Magna publishing Co. Ltd.

Παραπομπή Chicago Style

Maxwell, John C. 21 Irrefutable Laws of Leadership. Mumbai: Magna publishing Co. Ltd, 1999.

Παραπομπή MLA

Maxwell, John C. 21 Irrefutable Laws of Leadership. Magna publishing Co. Ltd, 1999.