Cita APA (7a ed.)
Langan, J. (2002). English skills with reading (5th ed.). McGrawHill.
Cita Chicago Style (17a ed.)
Langan, Jhon. English Skills with Reading. 5th ed. New York: McGrawHill, 2002.
Cita MLA (9a ed.)
Langan, Jhon. English Skills with Reading. 5th ed. McGrawHill, 2002.
Precaución: Estas citas no son 100% exactas.