APA aipamena

Ferrett, S. K. (2010). Peak performance: Success in college and beyond (7th ed.). New York: McGraw-Hill.

Chicago Style aipamena

Ferrett, Sharon K. Peak Performance: Success in College and Beyond. 7th ed. New York: McGraw-Hill, 2010.

MLA aipamena

Ferrett, Sharon K. Peak Performance: Success in College and Beyond. 7th ed. New York: McGraw-Hill, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.