Lua APA (7ú heag.)

KOONTZ HAROLD. (2013). ESSENTIALS OF MANAGEMENT (9TH ED.). TATA MC GRAW HILL.

Lua i Stíl Chicago (17ú heag.)

KOONTZ HAROLD. ESSENTIALS OF MANAGEMENT. 9TH ED. NEW DELHI: TATA MC GRAW HILL, 2013.

Lua MLA (9ú heag.)

KOONTZ HAROLD. ESSENTIALS OF MANAGEMENT. 9TH ED. TATA MC GRAW HILL, 2013.

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