Style de citation APA (7e éd.)

KOONTZ HAROLD. (1990). ESSENTIALS OF MANAGEMENT (5.). MCGRAW-HILL.

Style de citation Chicago (17e éd.)

KOONTZ HAROLD. ESSENTIALS OF MANAGEMENT. 5. NEW YORK: MCGRAW-HILL, 1990.

Style de citation MLA (9e éd.)

KOONTZ HAROLD. ESSENTIALS OF MANAGEMENT. 5. MCGRAW-HILL, 1990.