MLA
Garland's Neger Operette : African American Men and Women Singers, Wearing Suits and Dresses, Holding Flowers on a Stage [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/84302v6x21-cor.
APA, 6th edition
Garland's Neger Operette : African American men and women singers, wearing suits and dresses, holding flowers on a stage [hand colored] (Box 70). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/84302v6x21-cor.
Chicago
“Garland's Neger Operette : African American Men and Women Singers, Wearing Suits and Dresses, Holding Flowers on a Stage [Hand Colored].” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/84302v6x21-cor.