APA Alıntı

Urwick, L. F. (1957). Leadership in the twentieth century. Sir Issac Pitman & sons.

Chicago Stili Alıntı

Urwick, Lyndall F. Leadership in the Twentieth Century. London: Sir Issac Pitman & sons, 1957.

MLA Alıntı

Urwick, Lyndall F. Leadership in the Twentieth Century. Sir Issac Pitman & sons, 1957.