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Rocks and Minerals : mineralogy, geology, lapidary Published by: Washington, DC, Helen Dwight Reid Educational Foundation (United States of America) Subject: Mines And Mining Industry Language: English Published: 1926 ISSN: 0035-7529 Available at 1 Universities. | |||
Mining Voice Published by: Washington, DC, National Mining Association (United States of America) Subject: Mines And Mining Industry Language: English Published: 1978 ISSN: 1080-6121 Available at 1 Universities. |