Hardach, G. (1978). A short history of socialist economic thought. Edward Arnold.
Lua i Stíl Chicago (17ú heag.)Hardach, Gerd. A Short History of Socialist Economic Thought. London: Edward Arnold, 1978.
Lua MLA (9ú heag.)Hardach, Gerd. A Short History of Socialist Economic Thought. Edward Arnold, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.