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| Utgitt
| Pittsburgh, Pa. : Mining and Metallurgical Advisory Boards , 1934
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| Omfang
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| Opplysninger
| Også utgitt som nr 64-69 in serien Cooperative bulletin. - Over tittelen: Mining and metallurgical investigations, under auspices of Carnegie Institute of Technology, and Mining and Metallurgical Advisory Boards
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| Emner
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