Cunningham, S., & Moor, P. (2002). New headway pronunciation: Elementary student's practice book. Oxford University Press.
Citazione stile Chigago Style (17a edizione)Cunningham, Sarah, e Peter Moor. New Headway Pronunciation: Elementary Student's Practice Book. Oxford: Oxford University Press, 2002.
Citatione MLA (9a ed.)Cunningham, Sarah, e Peter Moor. New Headway Pronunciation: Elementary Student's Practice Book. Oxford University Press, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.