Conquest, R. (1970). Where Marx went wrong. Tom Stacey Ltd..
Lua i Stíl Chicago (17ú heag.)Conquest, Robert. Where Marx Went Wrong. London: Tom Stacey Ltd., 1970.
Lua MLA (8ú heag.)Conquest, Robert. Where Marx Went Wrong. Tom Stacey Ltd., 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.