(1974). Encyclopedia of sociology. Dushkin Pub. Group.
Lua i Stíl Chicago (17ú heag.)Encyclopedia of Sociology. Guilford, Conn: Dushkin Pub. Group, 1974.
Lua MLA (9ú heag.)Encyclopedia of Sociology. Dushkin Pub. Group, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.