MLA
Spencer, Thomas. Photograph of a Portrait of Lieutenant Colonel Pierce Manning Butler Young, a Member of Cobb's Legion (Georgia Legion) and Later a Major General in the Confederate States Army. The Portrait Was in the Young Home in Bartow County, Georgia. 1930. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 17, Folder 36. https://digital.library.emory.edu/purl/385n8pk1vq-cor.
APA, 6th edition
Spencer, T. (1930). Photograph of a portrait of Lieutenant Colonel Pierce Manning Butler Young, a member of Cobb's Legion (Georgia Legion) and later a Major General in the Confederate States Army. The portrait was in the Young home in Bartow County, Georgia (Box 17, Folder 36) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/385n8pk1vq-cor.
Chicago
Spencer, Thomas. “Photograph of a Portrait of Lieutenant Colonel Pierce Manning Butler Young, a Member of Cobb's Legion (Georgia Legion) and Later a Major General in the Confederate States Army. The Portrait Was in the Young Home in Bartow County, Georgia.” Black-and-white photographs. Civil War Collection, 1930. Box 17, Folder 36. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/385n8pk1vq-cor.