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German working class radicalism in the United States from the 1870s to World War I
Keil, Hartmut, (1986)
George Rapp's years of glory : economy on the Ohio, 1834 - 1847
Arndt, Karl John Richard, (1987)
Hostile territory : high-tension religion and the Jewish peddler
Berndt, Colleen E. H., (2007)