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Karl L. Kithil

Technical Paper 110, Mineral Technology 8. Department of the Interior. Bureau of Mines. Monazite, Thorium, and Mesothorium. First Edition. June, 1915

Technical Paper 110, Mineral Technology 8. Department of the Interior. Bureau of Mines. Monazite, Thorium, and Mesothorium. First Edition. June, 1915

Joseph A. Holmes, Karl L. Kithil