APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.