Cita APA (7th ed.)

Drucker P. (2010). The Changing World of the Executive. Harvard Bus.Sch Pub.

Cita Chicago (17th ed.)

Drucker P. The Changing World of the Executive. Boston: Harvard Bus.Sch Pub, 2010.

Cita MLA (9th ed.)

Drucker P. The Changing World of the Executive. Harvard Bus.Sch Pub, 2010.