2019-12-162019-12-16http://hdl.handle.net/1885/1955664 MB1 map168 MB1 map300 dpiimage/jpgimage/tiffenCopyright ExpiredTopographicVietnam -- MapsVietnam, Bon Drang Phok, Series: L7014, Sheet 6534 IV, 1969, 1:50 00019692019-12-16