MLA
MacFarlane, W. G. Roustabouts on the Levee, Louisiana [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/2902z34trk-cor.
APA, 6th edition
MacFarlane, W. G. Roustabouts on the levee, Louisiana [hand colored] (Box 71) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2902z34trk-cor.
Chicago
MacFarlane, W. G. “Roustabouts on the Levee, Louisiana [Hand Colored].” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2902z34trk-cor.