Drought in the United States analyzed by means of the theory of probability - Benton, George Stock, 1917- (Washington, D.C., United States Dept. of agriculture, 1942)
Cover title.
Contribution from Soil conservation service.
"Literature cited": p. 62-63.
Keywords: Droughts -- United States; Meteorology -- Periodicity; Periodicity in meteorology; Probabilities; Weather forecasting -- United States