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Engineering and Mining Journal 1921-08-20: Vol 112 Iss 8 ( ) Title Engineering and Mining Journal 1921-08-20: Vol 112 Iss 8 Volume 112 Publisher Mining...
Engineering and Mining Journal 1921-08-27: Vol 112 Iss 9 ( ) Title Engineering and Mining Journal 1921-08-27: Vol 112 Iss 9 Volume 112 Publisher Mining...
Engineering and Mining Journal 1921-11-19: Vol 112 Iss 21 ( ) Title Engineering and Mining Journal 1921-11-19: Vol 112 Iss 21 Volume 112 Publisher...
Engineering and Mining Journal 1921-09-03: Vol 112 Iss 10 ( ) Title Engineering and Mining Journal 1921-09-03: Vol 112 Iss 10 Volume 112 Publisher...
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Engineering and Mining Journal-Press 1925-05-16: Vol 119 Iss 20 ( ) Title Engineering and Mining Journal-Press 1925-05-16: Vol 119 Iss 20 Volume 119...
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The Engineering and Mining Journal 1873-06-10: Vol 15 Iss 23 ( ) Title The Engineering and Mining Journal 1873-06-10: Vol 15 Iss 23 Volume 15 Publisher...