APA ציטוט

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

Chicago Style (17th ed.) Citation

Drucker, Peter Ferdinand. The Changing World of the Executive. New York, N.Y: Times Books, 1982.

ציטוט MLA

Drucker, Peter Ferdinand. The Changing World of the Executive. Times Books, 1982.