Knight, R. (1991). Stalinism in crisis. Pluto Press.
Lua i Stíl Chicago (17ú heag.)Knight, Robert. Stalinism in Crisis. London: Pluto Press, 1991.
Lua MLA (9ú heag.)Knight, Robert. Stalinism in Crisis. Pluto Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.