Cita APA (7th ed.)

Langan, J. (1984). College writing skills. McGraw-Hill Book Co.

Cita Chicago (17th ed.)

Langan, John. College Writing Skills. New York: McGraw-Hill Book Co, 1984.

Cita MLA (9th ed.)

Langan, John. College Writing Skills. McGraw-Hill Book Co, 1984.