APA (7e ed.) Bronvermelding

Ferrett, S. K. (1997). Peak performance: Success in college & beyond (2nd ed.). Glencoe/McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Ferrett, Sharon K. Peak Performance: Success in College & Beyond. 2nd ed. New York, NY: Glencoe/McGraw-Hill, 1997.

MLA (8e ed.) Bronvermelding

Ferrett, Sharon K. Peak Performance: Success in College & Beyond. 2nd ed. Glencoe/McGraw-Hill, 1997.