Comparative analysis of working time at mechanized coal faces / transmitted by the Government of Federal Republic of Germany.
1982
Notice détaillée
Symbole[E/ECE/]COAL/GE.2/R.40/Add.3
TitreComparative analysis of working time at mechanized coal faces / transmitted by the Government of Federal Republic of Germany.
AuteursGermany, Federal Republic of
DateGeneva : UN, 20 Apr. 1982.
Description
3 p.