MLA
Dallas Post Card Co. (Dallas, Tex.). Municipal Building, Greenville, Tex.. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/682k6djhcg-cor.
APA, 6th edition
Dallas Post Card Co. (Dallas, Tex.). (unknown)[Municipal Building, Greenville, Tex.]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/682k6djhcg-cor.
Chicago
Dallas Post Card Co. (Dallas, Tex.), Municipal Building, Greenville, Tex., unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/682k6djhcg-cor.