5
1
20
Report No. 199:
"The Biru Prospect" final report
Van Leeuwen, Theo M.
Primary Author
mixed material
PT. Riotinto Bethlehem Indonesia
1976
Report No. 66 Coal survey Tebo Area:
PT Riotinto Bethlehem Indonesia
Van Leeuwen, Theo M.
Additional Author
Large, D.E.
Additional Author
mixed material
Jakarta
PT. Riotinto Bethlehem Indonesia
1973
Report No. 46 The Siulak Deras Cu / Mo anomaly final report:
PT Riotinto Bethlehem Indonesia
Van Leeuwen, Theo M.
Additional Author
Large, D.E.
Additional Author
mixed material
Jakarta
PT. Riotinto Bethlehem Indonesia
1973
The discovery and exploration of Pinang Coal deposit, East Kalimantan
Van Leeuwen, Theo M.
Additional Author
mixed material
Jakarta
PT. Riotinto Bethlehem Indonesia
1988
Report No. 71 Coal Survey South Tigapuluh Mountains:
PT Riotinto Bethlehem Indonesia
Van Leeuwen, Theo M.
Additional Author
mixed material
Jakarta
PT. Riotinto Bethlehem Indonesia
1973