MLA
Schomburg, Arthur Alfonso, 1874-1938. Racial integrity : a plea for the establishment of a chair of Negro history in our schools and colleges, etc.. 1913. African American Imprints Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0687h44k2f-cor.
APA, 6th edition
Schomburg, Arthur Alfonso, 1874-1938. (1913)[Racial integrity : a plea for the establishment of a chair of Negro history in our schools and colleges, etc.]. African American Imprints Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0687h44k2f-cor.
Chicago
Schomburg, Arthur Alfonso, 1874-1938, Racial integrity : a plea for the establishment of a chair of Negro history in our schools and colleges, etc., 1913, African American Imprints Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0687h44k2f-cor.