Cita APA (7a ed.)

Drucker, P. F. (2006). The effective executive. Collins Business.

Cita Chicago Style (17a ed.)

Drucker, Peter F. The Effective Executive. New York: Collins Business, 2006.

Cita MLA (8a ed.)

Drucker, Peter F. The Effective Executive. Collins Business, 2006.

Precaución: Estas citas no son 100% exactas.