Cragan, J. F. (2009). Communication in small group. Wedsworth.
Lua i Stíl Chicago (17ú heag.)Cragan, John F. Communication in Small Group. Wedsworth, 2009.
Lua MLA (8ú heag.)Cragan, John F. Communication in Small Group. Wedsworth, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.