Style de citation APA (7e éd.)

KOONTZ, H. (1990). ESSENTIALS OF MANAGEMENT, 5TH ED. MCGRAW HILL BOOK CO.

Style de citation Chicago (17e éd.)

KOONTZ, HAROLD. ESSENTIALS OF MANAGEMENT, 5TH ED. NEW-YORK: MCGRAW HILL BOOK CO, 1990.

Style de citation MLA (9e éd.)

KOONTZ, HAROLD. ESSENTIALS OF MANAGEMENT, 5TH ED. MCGRAW HILL BOOK CO, 1990.