MLA
Crowdy, William Saunders (1847-1908), Prophet and Founder, Church of God and Saints of Christ. Stuart A. Rose Manuscript, Archives, and Rare Book Library, OP59. https://digital.library.emory.edu/purl/709w0vt4d4-cor.
APA, 6th edition
Crowdy, William Saunders (1847-1908), Prophet and Founder, Church of God and Saints of Christ (OP59). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/709w0vt4d4-cor.
Chicago
“Crowdy, William Saunders (1847-1908), Prophet and Founder, Church of God and Saints of Christ.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. OP59. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/709w0vt4d4-cor.