2019-12-162020-10-20http://hdl.handle.net/1885/21263812 MB1 map174 MB1 map300 dpiimage/jpgimage/tiffenCopyright expires 50 yrs after date of PublicationTopographyVietnam--MapsVietnam-Laos, Hung Trung, Series: L7014, Sheet 6144 II, 1974, 1:50 00019742020-10-20