MLA
Oklahoma City Baptism, 1890s [Crayon Portrait]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, OP169. https://digital.library.emory.edu/purl/378tb2rbpm-cor.
APA, 6th edition
Oklahoma City baptism, 1890s [crayon portrait] (OP169). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/378tb2rbpm-cor.
Chicago
“Oklahoma City Baptism, 1890s [Crayon Portrait].” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. OP169. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/378tb2rbpm-cor.