Surface water supply of the United States, 1932, Part III, Ohio River basin
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Water Supply Paper↗
Geology topics
A.H. Horton
Publications and source records attributed to A.H. Horton.
Surface water supply of the United States, 1925, Part III, Ohio River basin
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Water Supply Paper↗
Power capacity and production in the United States
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Water Supply Paper↗
Surface water supply of the United States, 1910, Part III, Ohio River basin
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Water Supply Paper↗
Surface water supply of the United States, 1909, Part IV, St. Lawrence River basin
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Water Supply Paper↗