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Jackson: University Press of Mississippi, 1999.

Peniel Joseph, ed. The Black Power Movement.

Nueva York: Routledge, 2006.

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Nueva York: Delacorte Press, 1973.

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Bruce Laurie. Artisans into Workers. Labor in Nineteenth-Century America.

Nueva York: Noonday Press, 1989.

Bruce Laurie. Working People of Philadelphia, 1800–1850.

Filadelfia: Temple University Press, 1980.

José Martí. En los Estados Unidos. Periodismo de 1881 a 1892.

París: ALLCA XX, 2003.

J. Robert Constantine, ed. Letters of Eugene V. Debs.

Urbana/Chicago: University of Illinois Press, 1990.

David Shannon. The Socialist Party of America. A History.

Nueva York: Macmillan, 1955.