APA ציטוט

Drucker, P. F. (1982). The changing world of the executive. New York: A Truman Talley Book.

Trích dẫn kiểu Chicago

Drucker, Peter F. The Changing World of the Executive. New York: A Truman Talley Book, 1982.

ציטוט MLA

Drucker, Peter F. The Changing World of the Executive. New York: A Truman Talley Book, 1982.