Lofland, J. (2003). Protes. Insist.
Lua i Stíl Chicago (17ú heag.)Lofland, John. Protes. Insist, 2003.
Lua MLA (8ú heag.)Lofland, John. Protes. Insist, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)