Style de citation APA (7e éd.)

Koontz, H., O'Donnell, C., & Weihrich, H. (1986). Essentials of management (4th ed.). McGraw-Hill.

Style de citation Chicago (17e éd.)

Koontz, Harold, Cyril O'Donnell, et Heinz Weihrich. Essentials of Management. 4th ed. New York: McGraw-Hill, 1986.

Style de citation MLA (8e éd.)

Koontz, Harold, et al. Essentials of Management. 4th ed. McGraw-Hill, 1986.