Langan, J. (2010). Ten steps to advancing college reading skills (5th ed.). Townsend Press.
Cita Chicago (17th ed.)Langan, John. Ten Steps to Advancing College Reading Skills. 5th ed. Marlton, NJ: Townsend Press, 2010.
Cita MLA (9th ed.)Langan, John. Ten Steps to Advancing College Reading Skills. 5th ed. Townsend Press, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.