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Ground-water levels in the United States 1960-64
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Ground-water levels in the United States 1961-65
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Ground-water levels in the United States, 1962-66
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Ground-water research of the U.S. Geological Survey
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Ground-water supplies of the Ypsilanti area, Michigan
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Scientific or rule-of-thumb techniques of ground-water management
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The role of ground water in the national water situation
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The water situation in the United States with special reference to ground water
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