APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.