by Thomas A. Winterstein
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Water-quality data collected on Prairie ...
Cost-effectiveness of the streamflow-gag...
Hydraulic properties of Mt. Simon aquife...
Water-quality data from lakes and stream...
Selected Data From Field Studies Of Pest...
At the Waterworks
Inside the Earth (Magic School Bus)
Fiabe italiane
Hydrologic data, 1964
Hydrologic data, 1965
Hydrologic data, 1966