Cita APA

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

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.