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Details
Symbol
[E/ECE/]COAL/GE.4/R.19/Add.9
Title
Report / transmitted by the Government of Czechoslovakia.
Other titles
Drivage, development and support of roadways and faces in deep mines - 1,000 metres and over - and consequently in more difficult mining, geological and atmospheric conditions : report
Authors
Date
Geneva : UN, 21 Nov. 1983.
Description
7 p. : table