Cita APA

 Manning, G. (2009).  The art of leadership.  McGraw-Hill Irwin.

Chicago Style Citation

 Manning, George.  The Art of Leadership.  McGraw-Hill Irwin, 2009.

Cita MLA

 Manning, George.  The Art of Leadership.  McGraw-Hill Irwin, 2009.

Atenció: Aquestes cites poden no estar 100% correctes.