Ruffin, H. G., & Mack, D. (2018). Freedom's racial frontier: African Americans in the twentieth-century West. University of Oklahoma Press.
Chicago Style (17th ed.) CitationRuffin, Herbert G., and Dwayne Mack. Freedom's Racial Frontier: African Americans in the Twentieth-century West. Norman: University of Oklahoma Press, 2018.
MLA (9th ed.) CitationRuffin, Herbert G., and Dwayne Mack. Freedom's Racial Frontier: African Americans in the Twentieth-century West. University of Oklahoma Press, 2018.
Warning: These citations may not always be 100% accurate.