2019-12-162019-12-16http://hdl.handle.net/1885/1955297 MB1 map177 MB1 map300 dpiimage/jpgimage/tiffenCopyright ExpiredTopographicVietnam -- MapsVietnam, Yen Lac, Series: L7014, Sheet 6253 III, 1965, 1:50 00019652019-12-16