Cita APA (7a ed.)
Wardhaugh, R. (1977). Introduction to linguistics (2nd ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)
Wardhaugh, Ronald. Introduction to Linguistics. 2nd ed. New York: McGraw-Hill, 1977.
Cita MLA (9a ed.)
Wardhaugh, Ronald. Introduction to Linguistics. 2nd ed. McGraw-Hill, 1977.
Precaución: Estas citas no son 100% exactas.