2019-12-162019-12-16http://hdl.handle.net/1885/1955225 MB1 map169 MB1 map300 dpiimage/jpgimage/tiffenCopyright ExpiredTopographicVietnam -- MapsVietnam, Ke Sat , Series: L7014, Sheet 6250 IV, 1967, 1:50 00019672019-12-16