MLA
Ahrens, Henry H. Second Avenue, McRae, Georgia. 1951. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/767wm37pxj-cor.
APA, 6th edition
Ahrens, H. H. (1951). Second Avenue, McRae, Georgia (Box 71) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/767wm37pxj-cor.
Chicago
Ahrens, Henry H. “Second Avenue, McRae, Georgia.” Photographic postcards. Robert Langmuir African American Photograph Collection, 1951. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/767wm37pxj-cor.