Coal-face operations with mechanized and automated systems / transmitted by the Government of Poland.
1983
Details
Symbol[E/ECE/]COAL/GE.4/R.24/Add.5
TitleCoal-face operations with mechanized and automated systems / transmitted by the Government of Poland.
AuthorsPoland
DateGeneva : UN, 19 Dec. 1983.
Description
14, 7 p. : diagrams, graph, tables