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The Engineering and Mining Journal 1912-09-21: Vol 94 Iss 12 ( ) Title The Engineering and Mining Journal 1912-09-21: Vol 94 Iss 12 Volume 94 Publisher...
The Engineering and Mining Journal 1912-08-31: Vol 94 Iss 9 ( ) Title The Engineering and Mining Journal 1912-08-31: Vol 94 Iss 9 Volume 94 Publisher...
The Engineering and Mining Journal 1912-10-05: Vol 94 Iss 14 ( ) Title The Engineering and Mining Journal 1912-10-05: Vol 94 Iss 14 Volume 94 Publisher...
The Engineering and Mining Journal 1912-01-06: Vol 93 Iss 1 ( ) Title The Engineering and Mining Journal 1912-01-06: Vol 93 Iss 1 Volume 93 Publisher...
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