MLA
Kauffman, O. F. Real Estate Map of Units 1 and 2 of Avondale Estates, Atlanta, Dekalb County, Georgia. 1927. Stuart A. Rose Manuscript, Archives, and Rare Book Library, OP5. https://digital.library.emory.edu/purl/989r2280v6-cor.
APA, 6th edition
Kauffman, O. F. (1927). Real estate map of units 1 and 2 of Avondale Estates, Atlanta, Dekalb County, Georgia (OP5) [Cadastral maps]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/989r2280v6-cor.
Chicago
Kauffman, O. F. “Real Estate Map of Units 1 and 2 of Avondale Estates, Atlanta, Dekalb County, Georgia.” Cadastral maps. Atlanta Miscellany Collection, 1927. OP5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/989r2280v6-cor.