Kouzes, J. M., & Posner, B. Z. (1988). Leadership practices inventory (LPI): Trainer's manual. San Diego : Pfeiffer & Co..
Dyfyniad Arddull ChicagoKouzes, James M., and Barry Z. Posner. Leadership Practices Inventory (LPI): Trainer's Manual. San Diego : Pfeiffer & Co., 1988.
Dyfyniad MLAKouzes, James M., and Barry Z. Posner. Leadership Practices Inventory (LPI): Trainer's Manual. San Diego : Pfeiffer & Co., 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.