Citazione Stile APA (7a Edizione)
Wallwork, A. (1997). Discussions A-Z advanced: A resource book of speaking activities (1a. Edición.). Cambridge University Press.
Citazione stile Chigago Style (17a edizione)
Wallwork, Adrian. Discussions A-Z Advanced: A Resource Book of Speaking Activities. 1a. Edición. Estados Unidos: Cambridge University Press, 1997.
Citatione MLA (9a ed.)
Wallwork, Adrian. Discussions A-Z Advanced: A Resource Book of Speaking Activities. 1a. Edición. Cambridge University Press, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.