Citazione Stile APA (7a Edizione)

Maley, A., & Duff, A. (1975). Sounds interesting: Resource material for teachers. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Maley, Alan, e Alan Duff. Sounds Interesting: Resource Material for Teachers. Cambridge, [England]: Cambridge University Press, 1975.

Citatione MLA (9a ed.)

Maley, Alan, e Alan Duff. Sounds Interesting: Resource Material for Teachers. Cambridge University Press, 1975.