2019-12-162019-12-16http://hdl.handle.net/1885/1954885 MB1 map344 MB1 map300 dpiimage/jpgimage/tiffenCopyright ExpiredTopographicVietnam -- MapsVietnam, Cao Lanh, Series: L7014, Sheet 6129 IV, 1968, 1:50 00019682019-12-16