United Nations International Framework Classification for Reserves/Resources : Solid Fuels and Mineral Commodities.
1997
详细记录
符号E/ECE/(52)/L.2
标题United Nations International Framework Classification for Reserves/Resources : Solid Fuels and Mineral Commodities.
日期Geneva : UN, 18 Apr. 1997.
描述
2 p.
备注
Draft decision proposed by the Committee on Energy.