Παραπομπή APA

O'Leary, J. (2006). Centurion principles: Battlefied lessons for frontline leaders. Dorling Kindersley.

Παραπομπή Chicago Style

O'Leary, Jeff. Centurion Principles: Battlefied Lessons for Frontline Leaders. New Delhi: Dorling Kindersley, 2006.

Παραπομπή MLA

O'Leary, Jeff. Centurion Principles: Battlefied Lessons for Frontline Leaders. Dorling Kindersley, 2006.