Cita APA

Soars, J., & Soars, L. (2007). New headway: Pre - Intermediate : Student's book (3rd ed.). Oxford: Oxford Univ. Press.

Citación estilo Chicago

Soars, John, y Liz Soars. New Headway: Pre - Intermediate : Student's Book. 3rd ed. Oxford: Oxford Univ. Press, 2007.

Cita MLA

Soars, John, y Liz Soars. New Headway: Pre - Intermediate : Student's Book. 3rd ed. Oxford: Oxford Univ. Press, 2007.