Cita APA (7th ed.)

Langan, J. (1995). English skills with readings (3rd ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Langan, John. English Skills with Readings. 3rd ed. New York: McGraw-Hill, 1995.

Cita MLA (8th ed.)

Langan, John. English Skills with Readings. 3rd ed. McGraw-Hill, 1995.