KOONTZ HAROLD. (1990). ESSENTIALS OF MANAGEMENT (5.). MCGRAW-HILL.
Chicago-čujuhus (17. p.)KOONTZ HAROLD. ESSENTIALS OF MANAGEMENT. 5. NEW YORK: MCGRAW-HILL, 1990.
MLA-čujuhus (9. p.)KOONTZ HAROLD. ESSENTIALS OF MANAGEMENT. 5. MCGRAW-HILL, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.