Cita APA (7a ed.)
Mellgren, L. (1973). New Horizons in English. Addison-Wesley.
Cita Chicago Style (17a ed.)
Mellgren, LArs. New Horizons in English. Massachusetts: Addison-Wesley, 1973.
Cita MLA (9a ed.)
Mellgren, LArs. New Horizons in English. Addison-Wesley, 1973.
Precaución: Estas citas no son 100% exactas.