APA aipamena

Ferrett, S. K. (2012). Peak performance: Success in college and beyond (8th ed.). New York: McGraw-Hill.

Chicago Style aipamena

Ferrett, Sharon K. Peak Performance: Success in College and Beyond. 8th ed. New York: McGraw-Hill, 2012.

MLA aipamena

Ferrett, Sharon K. Peak Performance: Success in College and Beyond. 8th ed. New York: McGraw-Hill, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.