APA (7th ed.) Citation

Langan, J. (2006). English skills (5th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Langan, John. English Skills. 5th ed. New York: McGraw-Hill, 2006.

MLA (9th ed.) Citation

Langan, John. English Skills. 5th ed. McGraw-Hill, 2006.