APA-Zitierstil (7. Ausg.)
Rybold, G. (2006). Speaking, listening and understanding: Debate for non-native English speakers. International Debate Education Association.
Chicago-Zitierstil (17. Ausg.)
Rybold, Gary. Speaking, Listening and Understanding: Debate for Non-native English Speakers. New York, NY: International Debate Education Association, 2006.
MLA-Zitierstil (9. Ausg.)
Rybold, Gary. Speaking, Listening and Understanding: Debate for Non-native English Speakers. International Debate Education Association, 2006.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.