A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Read before the W. Va. Min. Inst. Illustrates and describes the design and construction of modern coal-mine shafts in the United States. (4500 w.) (No. 29293 C)
Read before the W. Va. Min. Inst. Illustrates and describes the design and construction of modern coal-mine shafts in the United States. (4500 w.) (No. 29293 C)
Shafts for American coal mines
Mines Min
Johnson, R.G. (author)
1912
Article (Journal)
English
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