Gaya APA

Ferrett, Sharon K.. (2008). Peak performance : succes in college and beyond (7). New York: McGraw-Hill.

Gaya Chicago

Ferrett, Sharon K.. Peak performance : succes in college and beyond. 7 New York: McGraw-Hill, 2008. Text.

Gaya MLA

Ferrett, Sharon K.. Peak performance : succes in college and beyond. 7 New York: McGraw-Hill, 2008. Text.

Gaya Turabian

Ferrett, Sharon K.. Peak performance : succes in college and beyond. 7 New York: McGraw-Hill, 2008. Print.