MLA
Clogenson. An Old Colored Cook Preparing Barbecued Meat at Firemen's Convention, Dallas, Texas [Hand Colored]. 1909. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/747dr7sr0d-cor.
APA, 6th edition
C. (1909). An old colored cook preparing barbecued meat at firemen's convention, Dallas, Texas [hand colored] (Box 70) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/747dr7sr0d-cor.
Chicago
Clogenson. “An Old Colored Cook Preparing Barbecued Meat at Firemen's Convention, Dallas, Texas [Hand Colored].” Photographic postcards. Robert Langmuir African American Photograph Collection, 1909. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/747dr7sr0d-cor.