Cole, G. (1965). Communism and social democracy 1914-1931. Macmillan.
Lua i Stíl Chicago (17ú heag.)Cole, G.D.H. Communism and Social Democracy 1914-1931. New York: Macmillan, 1965.
Lua MLA (9ú heag.)Cole, G.D.H. Communism and Social Democracy 1914-1931. Macmillan, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.