Statistical definitions for the tonnages of coal analysed by methods of transport / transmitted by the Government of Belgium.
1981
详细记录
符号[E/ECE/]COAL/GE.2/R.38/Add.1
标题Statistical definitions for the tonnages of coal analysed by methods of transport / transmitted by the Government of Belgium.
作者Belgium
日期Geneva : UN, 17 Dec. 1981.
描述
2 p.