MLA
Green, Edward S. National Capital Code of Etiquette. Austin Jenkins Co., 0AD. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2322bvq9zn-cor.
APA, 6th edition
Green, E. S. (0 C.E.). National capital code of etiquette [African American author.]. Austin Jenkins Co.; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2322bvq9zn-cor.
Chicago
Green, Edward S. “National Capital Code of Etiquette.” African American author. African American Imprints Collection. Washington, D.C.: Austin Jenkins Co., 0AD. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2322bvq9zn-cor.