2019-12-162019-12-16http://hdl.handle.net/1885/1955747 MB1 map172 MB1 map300 dpiimage/jpgimage/tiffenCopyright ExpiredTopographicVietnam -- MapsVietnam, Dam Ha, Series: L7014, Sheet 6551 lV, 1965, 1:50 00019652019-12-16