por Conger, Jay Alden [autor] | Hoyos Olier, Enrique [traductor] | Conger, Jay Alden. Charismatic leader.
por McFarland, Lynne Joy [autor] | Senn, Larry E [autor] | Childress, John R [autor] | Hoyos Olier, Enrique [traductor] | Ramirez Reyes, Luis Hernando [traductor].