Missouri River. Surface water supply of United States, 1942: pt. 6, Missouri River basin; prepared under direction of Glenn L. Parker, chief hydraulic engineer, H. C. Beckman, H. C. Bolon, L. C. Crawford, Robert Follansbee, D. D. Lewis (acting), T. R. Newell, P. R. Speer, and A. H. Tuttle, district engineers.