Citazione Stile APA (7a Edizione)

Manning, G., & Curtis, K. (2003). The art of leadership. McGraw-Hill/Irwin.

Citazione stile Chigago Style (17a edizione)

Manning, George, e Kent Curtis. The Art of Leadership. Boston, Mass.: McGraw-Hill/Irwin, 2003.

Citatione MLA (9a ed.)

Manning, George, e Kent Curtis. The Art of Leadership. McGraw-Hill/Irwin, 2003.