Koontz, H. (2007). Essentials of Management. Elsevier.
Chicago-čujuhus (17. p.)Koontz, Harold. Essentials of Management. Burlington: Elsevier, 2007.
MLA-čujuhus (9. p.)Koontz, Harold. Essentials of Management. Elsevier, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.