Preparation of an industrial classification of medium-zone coals / transmitted by the ICCP.
1982
Detalles de los registros
Signatura[E/ECE/]COAL/GE.3/R.58/Add.1
TítuloPreparation of an industrial classification of medium-zone coals / transmitted by the ICCP.
FechaGeneva : UN, 5 July 1982.
Descripción
1 p.