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You searched for: Author Schwartz, George M. Remove constraint Author: Schwartz, George M. Institution Minnesota Remove constraint Institution: Minnesota Year 1966 Remove constraint Year: 1966
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1. Map of mineral resources of Minnesota, 1966 (revised from 1956 edition)

1966. Schwartz, George M. and Prokopovich, N. Mineral resources map of Minnesota, scale 1:1,000,000.