Cita APA (7a ed.)
Soars, J., & Soars, L. (1995). Headway. Teacher's Book. Elementary (4.impression.). Oxford University Press.
Cita Chicago Style (17a ed.)
Soars, John, y Liz Soars. Headway. Teacher's Book. Elementary. 4.impression. Oxford: Oxford University Press, 1995.
Cita MLA (9a ed.)
Soars, John, y Liz Soars. Headway. Teacher's Book. Elementary. 4.impression. Oxford University Press, 1995.
Precaución: Estas citas no son 100% exactas.