MLA
Bros., Kauffman, and Engineers Sons. Real Estate Map of Subdivision Plots in Chelsea Heights, Land Lots 4, 18, and 244, 15th District, DeKalb County, Georgia. 1930. Stuart A. Rose Manuscript, Archives, and Rare Book Library, OP5. https://digital.library.emory.edu/purl/52908kps5c-cor.
APA, 6th edition
Bros., K., & Sons, E. (1930). Real estate map of subdivision plots in Chelsea Heights, Land Lots 4, 18, and 244, 15th District, DeKalb County, Georgia (OP5) [Cadastral maps]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/52908kps5c-cor.
Chicago
Bros., Kauffman, and Engineers Sons. “Real Estate Map of Subdivision Plots in Chelsea Heights, Land Lots 4, 18, and 244, 15th District, DeKalb County, Georgia.” Cadastral maps. Atlanta Miscellany Collection, 1930. OP5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/52908kps5c-cor.