2019-12-162019-12-16http://hdl.handle.net/1885/1955136 MB1 map358 MB1 map300 dpiimage/jpgimage/tiffenCopyright ExpiredTopographicVietnam -- MapsVietnam, Cau Ke, Series: L7014, Sheet 6228 IV, 1966, 1:50 00019662019-12-16