Topalov, C. (2009). Maurice Halbwachs and Chicago Sociologists.
Lua i Stíl Chicago (17ú heag.)Topalov, Christian. Maurice Halbwachs and Chicago Sociologists. 2009.
Lua MLA (8ú heag.)Topalov, Christian. Maurice Halbwachs and Chicago Sociologists. 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.