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2. American Labor Year Book, 1916–1917. New York: Rand School of Social Science, 1917. Print.
3. Blum, Edward J., and Paul Harvey. The Color of Christ the Son of God and the Saga of Race in America. Chapel Hill: U of North Carolina P, 2014. Print.
4. Botham, Fay. Almighty God Created the Races: Christianity, Interracial Marriage, and American Law. Chapel Hill: U of North Carolina P, 2009. Print.
5. Brissenden, Paul Frederick. IWW: A Study of American Syndicalism. New York: Columbia UP, 1919. Print.