APA aipamena

Koontz, H., & Weihrich, H. (1990). Essentials of management (5th ed.). McGraw Hill publishing.

Chicago Style aipamena

Koontz, Harold, and Heninz Weihrich. Essentials of Management. 5th ed. NewYork: McGraw Hill publishing, 1990.

MLA aipamena

Koontz, Harold, and Heninz Weihrich. Essentials of Management. 5th ed. McGraw Hill publishing, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.