Thomas County, 1940: Aerial photography index
MLA
United States. Agricultural Stabilization and Conservation Service. Aerial Photography Division. "Thomas County, 1940: Aerial photography index." University of Georgia. Map and Government Information Library. 1940, https://dlg.usg.edu/record/gyca_gaphind_thomas-1940#item.
APA
United States. Agricultural Stabilization and Conservation Service. Aerial Photography Division (1940). Thomas County, 1940: Aerial photography index. Retrieved from https://dlg.usg.edu/record/gyca_gaphind_thomas-1940#item
Chicago
United States. Agricultural Stabilization and Conservation Service. Aerial Photography Division. "Thomas County, 1940: Aerial photography index." 1940. June 24, 2025. https://dlg.usg.edu/record/gyca_gaphind_thomas-1940#item.