Rybold, G. (2006). Speaking, listening and understanding: Debate for non-native English speakers. International Debate Education Association.
Chicago-čujuhus (17. p.)Rybold, Gary. Speaking, Listening and Understanding: Debate for Non-native English Speakers. New York, NY: International Debate Education Association, 2006.
MLA-čujuhus (9. p.)Rybold, Gary. Speaking, Listening and Understanding: Debate for Non-native English Speakers. International Debate Education Association, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.