Cita APA

Falla, T., Soars, J., & Soars, L. (2002). New headway: Beginner : Workbook with key. Oxford: Oxford Univ. Press.

Citación estilo Chicago

Falla, Tim, John Soars, y Liz Soars. New Headway: Beginner : Workbook With Key. Oxford: Oxford Univ. Press, 2002.

Cita MLA

Falla, Tim, John Soars, y Liz Soars. New Headway: Beginner : Workbook With Key. Oxford: Oxford Univ. Press, 2002.