Byrne, G. (2009). Listening success. Compass Publishing.
Dyfyniad Arddull ChicagoByrne, Garrett. Listening Success. Compass Publishing, 2009.
Dyfyniad MLAByrne, Garrett. Listening Success. Compass Publishing, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.