Citazione Stile APA (7a Edizione)

Manning, G., & Curtis, K. (2009). The art of leadership (3rd ed.). McGraw-Hill Irwin.

Citazione stile Chigago Style (17a edizione)

Manning, George, e Kent Curtis. The Art of Leadership. 3rd ed. Boston: McGraw-Hill Irwin, 2009.

Citatione MLA (9a ed.)

Manning, George, e Kent Curtis. The Art of Leadership. 3rd ed. McGraw-Hill Irwin, 2009.