Brown S. Steven & Smith D. Dorolyn. (2007). Active Listening 1: Student's book (2nd ed.). Cambridge, Cambridge University Press, 2007.
Dyfyniad Arddull ChicagoBrown S. Steven and Smith D. Dorolyn. Active Listening 1: Student's Book. 2nd ed. Cambridge, Cambridge University Press, 2007, 2007.
Dyfyniad MLABrown S. Steven and Smith D. Dorolyn. Active Listening 1: Student's Book. 2nd ed. Cambridge, Cambridge University Press, 2007, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.