Analysis of the development of concentration indices at faces in the Ostrava-Karviná coalfield for the period 1981-1982 : information / transmitted by the Government of Czechoslovakia.
1983
Detalles de los registros
Signatura[E/ECE/]COAL/GE.1/R.54/Add.2
TítuloAnalysis of the development of concentration indices at faces in the Ostrava-Karviná coalfield for the period 1981-1982 : information / transmitted by the Government of Czechoslovakia.
AutoresCzechoslovakia
Información del programa[E/ECE/]COAL/GE.1/21 6 Concentration indices in European coal industries.
FechaGeneva : UN, 20 May 1983.
Descripción
3 p. : tables