KOONTZ HAROLD. (1972). PRINICIPLES OF MANAGEMENT: AN ANALYSIS OF MANAGERIAL FUNCTIONS (5.). MCGRAW-HILL.
Lua i Stíl Chicago (17ú heag.)KOONTZ HAROLD. PRINICIPLES OF MANAGEMENT: AN ANALYSIS OF MANAGERIAL FUNCTIONS. 5. TOKYO: MCGRAW-HILL, 1972.
Lua MLA (9ú heag.)KOONTZ HAROLD. PRINICIPLES OF MANAGEMENT: AN ANALYSIS OF MANAGERIAL FUNCTIONS. 5. MCGRAW-HILL, 1972.
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