APA (7th ed.) Citation

Langan, J. (1985). English skills (3rd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Langan, John. English Skills. 3rd ed. New York: McGraw-Hill, 1985.

MLA (8th ed.) Citation

Langan, John. English Skills. 3rd ed. McGraw-Hill, 1985.