Citazione Stile APA (7a Edizione)
Soars, J., & Soars, L. (2000). New headway English course: Pre-intermediate student's workbook CD. Oxford University Press.
Citazione stile Chigago Style (17a edizione)
Soars, John, e Liz Soars. New Headway English Course: Pre-intermediate Student's Workbook CD. Oxford: Oxford University Press, 2000.
Citatione MLA (9a ed.)
Soars, John, e Liz Soars. New Headway English Course: Pre-intermediate Student's Workbook CD. Oxford University Press, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.