Cita APA (7th ed.)

Koontz, H. (2005). Essentials of management,6th edn.

Cita Chicago (17th ed.)

Koontz, Harold. Essentials of Management,6th Edn. New Delhi, 2005.

Cita MLA (9th ed.)

Koontz, Harold. Essentials of Management,6th Edn. 2005.