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Development of the gypsum industry by states

Production, employment, and output per man in gypsum mining

Published Year

• 1920-1929 (1)
• 1940-1949 (1)

Subject

• Gypsum industry--United States (2) *
• Gypsum (1)
• Gypsum mines and mining--United States (1)
• Gypsum--United States (1)

Author

• Newcomb, Robinson, (1)
• Peterson, Knute. (1)
• Santmyers, R. M. (1)

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