Russell, B. R. (1919). Proposed roads to freedom: Socialism, anarchism and syndicalism. Holt.
Lua i Stíl Chicago (17ú heag.)Russell, Bertrand Russell. Proposed Roads to Freedom: Socialism, Anarchism and Syndicalism. New York: Holt, 1919.
Lua MLA (9ú heag.)Russell, Bertrand Russell. Proposed Roads to Freedom: Socialism, Anarchism and Syndicalism. Holt, 1919.
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