MLA
National Independent Political League, Washington, and D. C. National Negro American Political League, "Remember Brownsville and Vote for Mingo Saunders and the Discharged Negro Soldiers," Washington, D.C., circa 1908. 1908. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 3, Folder 9. https://digital.library.emory.edu/purl/6558cz8xs5-cor.
APA, 6th edition
National Independent Political League, W., & D. C. (1908). National Negro American Political League, "Remember Brownsville and Vote for Mingo Saunders and the Discharged Negro Soldiers," Washington, D.C., circa 1908 (Box 3, Folder 9) [Broadsides (notices)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6558cz8xs5-cor.
Chicago
National Independent Political League, Washington, and D.C. “National Negro American Political League, ‘Remember Brownsville and Vote for Mingo Saunders and the Discharged Negro Soldiers," Washington, D.C., circa 1908.” Broadsides (notices). William H. Scott Family Papers, 1848-1982, 1908. Box 3, Folder 9. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6558cz8xs5-cor.