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Authors

Author

Leonard Obert

Books

Underground Borate Mining, Kern County, Calif
Underground Borate Mining, Kern County, Calif
Leonard Obert, Albert E. Long
Oil-Shale Mine, Rifle, Colo
Oil-Shale Mine, Rifle, Colo
Leonard Obert, Robert H. Merrill
A Gage and Recording Equipment for Measuring Dynamic Strain in Rock
A Gage and Recording Equipment for Measuring Dynamic Strain in Rock
Leonard Obert, Wilbur I. Duvall

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