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Dr. C. K. Leith, Consultant on Mineral, Office of Production Management (OPM). Formerly professor in Geology at University…
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Dr. C. K. Leith, Consultant on Mineral, Office of Production Management (OPM). Formerly professor in Geology at University of Wisconsin (still). Sourced from the Library of Congress.

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Dr. C. K. Leith, Consultant on Mineral, Office of Production Management (OPM). Formerly professor in Geology at University of Wisconsin (still). Sourced from the Library of Congress.

More