Dyfyniad APA

KOONTZ, H. (1980). Management Harold Koontz, Cyril O'donnell And Heinz Weihrich. McGraw-Hill.

Dyfyniad Arddull Chicago

KOONTZ, Harold. Management Harold Koontz, Cyril O'donnell And Heinz Weihrich. McGraw-Hill, 1980.

Dyfyniad MLA

KOONTZ, Harold. Management Harold Koontz, Cyril O'donnell And Heinz Weihrich. McGraw-Hill, 1980.

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