Manning George, & Curtis Kent. (2008). The Art of Leadership. American: McGraw -Hill.
Trích dẫn kiểu ChicagoManning George, và Curtis Kent. The Art of Leadership. American: McGraw -Hill, 2008.
Deismireacht MLAManning George, và Curtis Kent. The Art of Leadership. American: McGraw -Hill, 2008.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.