MLA
Day, Roy E. African American Woman Holding an Infant, Feeding It with a Bottle. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 28. https://digital.library.emory.edu/purl/7956djhb1k-cor.
APA, 6th edition
Day, R. E. African American woman holding an infant, feeding it with a bottle (Box 28) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7956djhb1k-cor.
Chicago
Day, Roy E. “African American Woman Holding an Infant, Feeding It with a Bottle.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 28. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7956djhb1k-cor.