Dyfyniad APA

Drucker, P. F. (1982). The Changing World Of The Executive Peter F. Drucker. A Truman Talley.

Dyfyniad Arddull Chicago

Drucker, Peter F. The Changing World Of The Executive Peter F. Drucker. A Truman Talley, 1982.

Dyfyniad MLA

Drucker, Peter F. The Changing World Of The Executive Peter F. Drucker. A Truman Talley, 1982.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.