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Walter Henry Voskuil

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Illinois Mineral Industry in 1947 (Classic Reprint)
Illinois Mineral Industry In 1932 A Preliminary Statistical Summary and Economic Review (Classic Reprint)
Long-Term Manufacturing Opportunities in the Upper Mississippi Valley (Classic Reprint)
Illinois Mineral Industry In 1936 A Preliminary Statistical Summary and Economic Review (Classic Reprint)
Market Outlook for Sulfur Recoverable from Coal (Classic Reprint)
Geology and Mineral Resources of the Marseilles, Ottawa, and Streator Quadrangles; Illinois State Geological Survey Bulletin No. 66
Geology and Mineral Resources of the Marseilles, Ottawa, and Streator Quadrangles; Illinois State Geological Survey. Bulletin 66