MLA
Co., Detroit Photographic. Aunt Phoebe, Magnolia-on-the-Ashley, Charleston, S.C. [Hand Colored]. 1901. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 73. https://digital.library.emory.edu/purl/2085hqbznx-cor.
APA, 6th edition
Co., D. P. (1901). Aunt Phoebe, Magnolia-on-the-Ashley, Charleston, S.C. [hand colored] (Box 73) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2085hqbznx-cor.
Chicago
Co., Detroit Photographic. “Aunt Phoebe, Magnolia-on-the-Ashley, Charleston, S.C. [Hand Colored].” Photographic postcards. Robert Langmuir African American Photograph Collection, 1901. Box 73. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2085hqbznx-cor.