Colfax, J. D., & Roach, J. L. (1971). Radical sociology. Basic Books.
Lua i Stíl Chicago (17ú heag.)Colfax, J. David, agus Jack L. Roach. Radical Sociology. New York: Basic Books, 1971.
Lua MLA (8ú heag.)Colfax, J. David, agus Jack L. Roach. Radical Sociology. Basic Books, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.