Columbus quadrangle Georgia-Alabama : 15 minute series (topographic)
MLA
Geological Survey (U.S.). "Columbus quadrangle Georgia-Alabama : 15 minute series (topographic)." University of Georgia. Map and Government Information Library. 1961, https://dlg.usg.edu/record/dlg_topos_usgs15-columbus-1955#item.
APA
Geological Survey (U.S.) (1961). Columbus quadrangle Georgia-Alabama : 15 minute series (topographic). Retrieved from https://dlg.usg.edu/record/dlg_topos_usgs15-columbus-1955#item
Chicago
Geological Survey (U.S.). "Columbus quadrangle Georgia-Alabama : 15 minute series (topographic)." 1961. May 28, 2026. https://dlg.usg.edu/record/dlg_topos_usgs15-columbus-1955#item.
