Comparative analysis of working time losses at mechanized coal faces in the Ostrava-Karvina coalfield / transmitted / by the Government of Czechoslovakia.
1982
详细记录
符号[E/ECE/]COAL/GE.2/R.40/Add.2
标题Comparative analysis of working time losses at mechanized coal faces in the Ostrava-Karvina coalfield / transmitted / by the Government of Czechoslovakia.
日期Geneva : UN, 21 Jan. 1982.
描述
2 p.