APA aipamena

Drucker, P. F. (2010). The changing world of the executive. Boston: Harvard Business Press.

Chicago Style aipamena

Drucker, Peter Ferdinand. The Changing World of the Executive. Boston: Harvard Business Press, 2010.

MLA aipamena

Drucker, Peter Ferdinand. The Changing World of the Executive. Boston: Harvard Business Press, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.