APA (7th ed.) Citation

Koontz, H., Weihrich, H., & O'Donnell, C. (1980). Management (7th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Koontz, Harold, Heinz Weihrich, and Cyril O'Donnell. Management. 7th ed. New York: McGraw-Hill, 1980.

MLA (9th ed.) Citation

Koontz, Harold, et al. Management. 7th ed. McGraw-Hill, 1980.