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Dyfyniad Arddull ChicagoColes,, G.D.H. Communism and Social Democracy 1914-1931 Part 1: Vol-5, A History of Socialist Thought. New York: Palgrave, 2002.
Dyfyniad MLAColes,, G.D.H. Communism and Social Democracy 1914-1931 Part 1: Vol-5, A History of Socialist Thought. Palgrave, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.