The coal situation in the ECE region in 1991 and global prospects for coal.
1992
详细记录
符号[E/ECE/]ENERGY/WP.1/R.15/Add.1
标题The coal situation in the ECE region in 1991 and global prospects for coal.
日期Geneva : UN, 31 Aug. 1992.
描述
28 p. : chiefly tables