APA (7th ed.) Citation

Urwick, L. F. (1957). Leadership in the twentieth century / by L.F. Urwick. Pitman.

Chicago Style (17th ed.) Citation

Urwick, L. F. Leadership in the Twentieth Century / by L.F. Urwick. Pitman, 1957.

MLA (9th ed.) Citation

Urwick, L. F. Leadership in the Twentieth Century / by L.F. Urwick. Pitman, 1957.

Warning: These citations may not always be 100% accurate.