Cita APA (7th ed.)
Koontz, H., & Weihrich, H. (1988). Management (9th ed.). McGraw - hill.
Cita Chicago (17th ed.)
Koontz, Harold, i Heinz Weihrich. Management. 9th ed. New York: McGraw - hill, 1988.
Cita MLA (9th ed.)
Koontz, Harold, i Heinz Weihrich. Management. 9th ed. McGraw - hill, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.