Independent Social Democratic Party was a Czech political party, formed by Czech trade unionists belonging to the Imperial Trade Union Commission in 1910. The party was supported by the Austrian Social Democracy.McDermott, Kevin. The Czech Red Unions, 1918-1929: A Study of Their Relations with the Communist Party and the Moscow Internationals. East European monographs, no. 239. Boulder: East European Monographs, 1988. p. 12
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