Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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