91. Trends in climate and in precipitation-runoff relation in Missouri River Basin Author/Creator: Oltman, Roy E. 1911- (Roy Edwin), author Publication/Creation: Washington, D.C. : United States Department of the Interior, Geological Survey, 1952 Resource Type: Book Access & Availability: Loading
92. Normalcy tests of precipitation and frequency studies of runoff on small watersheds Author/Creator: Potter, W. D. 1898- (William Dayton) Publication/Creation: Washington : Dept. of Agriculture, 1949 Resource Type: Book Access & Availability: Loading
93. Annual runoff in the United States Author/Creator: Langbein, Walter Basil, 1907- author Publication/Creation: Washington, D.C. : United States Department of the Interior, Geological Survey, 1949 Resource Type: Book Access & Availability: Loading