APA aipamena

Langan, J. (2003). Ten skills you really need to succeed in college. Boston: McGraw-Hill.

Chicago Style aipamena

Langan, John. Ten Skills You Really Need to Succeed in College. Boston: McGraw-Hill, 2003.

MLA aipamena

Langan, John. Ten Skills You Really Need to Succeed in College. Boston: McGraw-Hill, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.