Cita APA

Wardhaugh, R., & Wardhaugh, R. (1972). Introduction to linguistics. New York, New York: McGraw-Hill.

Citación estilo Chicago

Wardhaugh, Ronald, y Ronald Wardhaugh. Introduction to Linguistics. New York, New York: McGraw-Hill, 1972.

Cita MLA

Wardhaugh, Ronald, y Ronald Wardhaugh. Introduction to Linguistics. New York, New York: McGraw-Hill, 1972.