1. Water Resources, Review, Water year 1945;Anonymous,1945
2. Carnegie Inst. Pub. 289;Douglass,1919
3. Recession of glaciers in Glacier National Park, Montana;Dyson;Trans. Amer. Geophys. Union,1940
4. Correlation of ground-water levels and precipitation on Long Island, N. Y;Jacob;Trans. Amer. Geophys. Union,1945
5. Water resources of the mid-continent area;Knapp;Civil Eng.,1940