Soars, L., & Soars, J. (2009). American Headway 3: The world's most trusted English course (2a. ed.). Oxford University Press.
Dyfyniad Arddull ChicagoSoars, Liz, and John Soars. American Headway 3: The World's Most Trusted English Course. 2a. ed. Nueva York: Oxford University Press, 2009.
Dyfyniad MLASoars, Liz, and John Soars. American Headway 3: The World's Most Trusted English Course. 2a. ed. Oxford University Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.