Efficiency and rational application of various methods and techniques of water drainage in opencast mining : report / transmitted by the Government of Czechoslovakia.
1984
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Signatura
[E/ECE/]COAL/GE.5/R.30/Add.5
Título
Efficiency and rational application of various methods and techniques of water drainage in opencast mining : report / transmitted by the Government of Czechoslovakia.
Autores
Fecha
Geneva : UN, 18 Sept. 1984.
Descripción
4 p.