APA استشهاد

Drucker, P. F. (1982). The changing world of the executive. Allied.

استشهاد بنمط شيكاغو

Drucker, Peter F. The Changing World of the Executive. New Delhi: Allied, 1982.

MLA استشهاد

Drucker, Peter F. The Changing World of the Executive. Allied, 1982.