Cita APA (7a ed.)
Langan, J. (2010). College writing skills with readings (8th ed.). McGraw-Hil.
Cita Chicago Style (17a ed.)
Langan, John. College Writing Skills with Readings. 8th ed. New York: McGraw-Hil, 2010.
Cita MLA (9a ed.)
Langan, John. College Writing Skills with Readings. 8th ed. McGraw-Hil, 2010.
Precaución: Estas citas no son 100% exactas.