A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ventilation of large copper mines of Arizona
35 cents. Methods, practices, and costs at 11 large mines.
Ventilation of large copper mines of Arizona
35 cents. Methods, practices, and costs at 11 large mines.
Ventilation of large copper mines of Arizona
U. S. Bur. Mines -- Bul
McElroy, G.E. (author)
1930
145 pages
41 Figs.
Report
English
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