Rybold, G., & Harvey-Smith, N. (2013). Speaking, listening and understanding: English language debate for non-native speakers (Revised edition.). International Debate Education Association.
Dyfyniad Arddull ChicagoRybold, Gary, and Neill Harvey-Smith. Speaking, Listening and Understanding: English Language Debate for Non-native Speakers. Revised edition. New York: International Debate Education Association, 2013.
Dyfyniad MLARybold, Gary, and Neill Harvey-Smith. Speaking, Listening and Understanding: English Language Debate for Non-native Speakers. Revised edition. International Debate Education Association, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.