A platform for research: civil engineering, architecture and urbanism
Support of roof at the coal face
Sci. Art Min
1924
2 pages
4 Figs.
Article (Journal)
English
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Support of various types of roof at coal face
Engineering Index Backfile | 1940
Resume of roof support methods used in coal mines
Engineering Index Backfile | 1963
|Resume of roof support methods used in coal mines
Engineering Index Backfile | 1961
|