MLA
Keller, G. J. Elizabeth McLaman in Photo Studio with Certificate from the Chautauqua School of Nursing. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15. https://digital.library.emory.edu/purl/56341ns1xq-cor.
APA, 6th edition
Keller, G. J. Elizabeth McLaman in photo studio with certificate from the Chautauqua School of Nursing (Box 15) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/56341ns1xq-cor.
Chicago
Keller, G. J. “Elizabeth McLaman in Photo Studio with Certificate from the Chautauqua School of Nursing.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 15. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/56341ns1xq-cor.