APA-viite

Urwick, L. (1958). Leadership in the twentieth century. Sir Isaac Pitman.

Chicago-tyylinen lähdeviittaus

Urwick, L.F. Leadership in the Twentieth Century. London: Sir Isaac Pitman, 1958.

MLA-viite

Urwick, L.F. Leadership in the Twentieth Century. Sir Isaac Pitman, 1958.