Kakabadse, A., & Kakabadse, N. (1999). Essence of leadership. London: International Thomson Business Press.
Dyfyniad Arddull ChicagoKakabadse, Andrew., và Nada Kakabadse. Essence of Leadership. London: International Thomson Business Press, 1999.
Dyfyniad MLAKakabadse, Andrew., và Nada Kakabadse. Essence of Leadership. London: International Thomson Business Press, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.