Cita APA

Soars, L., Soars, J., & Wheeldon, S. (2006). New headway: Elementary : Workbook with key (3rd ed.). Oxford: Oxford Univ. Press.

Citación estilo Chicago

Soars, Liz, John Soars, y Sylvia Wheeldon. New Headway: Elementary : Workbook With Key. 3rd ed. Oxford: Oxford Univ. Press, 2006.

Cita MLA

Soars, Liz, John Soars, y Sylvia Wheeldon. New Headway: Elementary : Workbook With Key. 3rd ed. Oxford: Oxford Univ. Press, 2006.