Better use of available coal resources and increased economy and efficiency of coal extraction techniques : note / by the Secretariat.
1981
Detalles de los registros
Signatura[E/]ECE/COAL/58
TítuloBetter use of available coal resources and increased economy and efficiency of coal extraction techniques : note / by the Secretariat.
AutoresPoland
UN. ECE. Secretariat
UN. ECE. Secretariat
FechaGeneva : UN, Apr. 1981.
Descripción
1 p.
Notas
Transmits document [E/ECE/]COAL/GE.5/R.14.