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Forty-Third, Forty-Fourth, Forty-Fifth, Forty-Sixth, Forty-Seventh and Forty-Eighth Annual Reports of the State Geologist

Author: Arthur C. Trowbridge

  • Forty-Third, Forty-Fourth, Forty-Fifth, Forty-Sixth, Forty-Seventh and Forty-Eighth Annual Reports of the State Geologist

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    Forty-Third, Forty-Fourth, Forty-Fifth, Forty-Sixth, Forty-Seventh and Forty-Eighth Annual Reports of the State Geologist

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Trowbridge, A. C., (1941) “Forty-Third, Forty-Fourth, Forty-Fifth, Forty-Sixth, Forty-Seventh and Forty-Eighth Annual Reports of the State Geologist”, Iowa Geological Survey Annual Report 37(1), p.vii-xiv. doi: https://doi.org/10.17077/2160-5270.1278

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Published on
01 Jan 1941
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Public domain