Engels, F. Anti-Duhring.
Lua i Stíl Chicago (17ú heag.)Engels, Friedrich. Anti-Duhring.
Lua MLA (8ú heag.)Engels, Friedrich. Anti-Duhring.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)