KOONTZ, H. (1964). Principle Of Management An Analysis Of Managerial Function Oleh Harold Koontz Dan Cyril O'donnell. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)KOONTZ, Harold. Principle Of Management An Analysis Of Managerial Function Oleh Harold Koontz Dan Cyril O'donnell. McGraw-Hill, 1964.
Lua MLA (8ú heag.)KOONTZ, Harold. Principle Of Management An Analysis Of Managerial Function Oleh Harold Koontz Dan Cyril O'donnell. McGraw-Hill, 1964.
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