APA (7th ed.) Zitazioa

Nolasco, R. (1987). Listening elementary. Oxford University Press.

Chicago Style (17th ed.) Zitazioa

Nolasco, Rob. Listening Elementary. Oxford: Oxford University Press, 1987.

MLA (9th ed.) Zitazioa

Nolasco, Rob. Listening Elementary. Oxford University Press, 1987.