Ferrett, S. K. (2010). Peak performance: Success in college and beyond (7th ed.). New York: McGraw-Hill.
Trích dẫn kiểu ChicagoFerrett, Sharon K. Peak Performance: Success in College and Beyond. 7th ed. New York: McGraw-Hill, 2010.
Deismireacht MLAFerrett, Sharon K. Peak Performance: Success in College and Beyond. 7th ed. New York: McGraw-Hill, 2010.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.