Cita APA (7th ed.)

Rybold, G. (2006). Speaking, listening and understanding: Debate for non-native-English speakers. International Debate Education Association.

Cita Chicago (17th ed.)

Rybold, Gary. Speaking, Listening and Understanding: Debate for Non-native-English Speakers. New York, NY: International Debate Education Association, 2006.

Cita MLA (9th ed.)

Rybold, Gary. Speaking, Listening and Understanding: Debate for Non-native-English Speakers. International Debate Education Association, 2006.