United Nations International Framework Classification for Reserves/Resources : Solid Fuels and Mineral Commodities : application of the United Nations reserves/resources classification to the German hard coal reserves of the Ruhr Basin / transmitted by the Government of Germany.
1996
详细记录
符号[E/ECE/]ENERGY/WP.1/R.57/Add.2
标题United Nations International Framework Classification for Reserves/Resources : Solid Fuels and Mineral Commodities : application of the United Nations reserves/resources classification to the German hard coal reserves of the Ruhr Basin / transmitted by the Government of Germany.
日期Geneva : UN, 26 Aug. 1996.
描述
19 p. : charts
备注
Transmits paper by Friedrich-Karl Bandelow on classification system used by a German hardcoal producer (Ruhrcoal).