Citazione Stile APA (7a Edizione)

Manning, G., & Curtis, K. (2007). The art of leadership (2nd ed.). McGraw-Hill Irwin.

Citazione stile Chigago Style (17a edizione)

Manning, George, e Kent Curtis. The Art of Leadership. 2nd ed. Boston: McGraw-Hill Irwin, 2007.

Citatione MLA (8a ed.)

Manning, George, e Kent Curtis. The Art of Leadership. 2nd ed. McGraw-Hill Irwin, 2007.