A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Brief description. (with discussion.) (2800 w.) (76892 N)
Brief description. (with discussion.) (2800 w.) (76892 N)
Making a shaft upwards
Instn Min Engrs, Trans
Walker, George Blake (author)
1917
Ills.
Article (Journal)
English
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