References: Luna Leopold

Leopold, Luna. The Rapids and the Pools — Grand Canyon. Washington, D.C.: Geological Survey Professional Paper 669-D, 1969.
Leopold, Luna B., and M. Gordon Wolman. “River Meanders.” GSA Bulletin 71, no. 6 (June 1, 1960): 769–93.[769:RM]2.0.CO;2.
Leopold, Luna B., and M. Gordon Wolman. River Channel Patterns: Braided, Meandering, and Straight. US Government Printing Office, 1957.
Leopold, Luna B., R. A. Bagnold, M. Gordon Wolman, and Lucien M. Brush. “Flow Resistance in Sinuous Or Irregular Channels,” 1960.
Leopold, Luna B., M. Gordon Wolman, and John P. Miller. Fluvial Processes in Geomorphology. New York: Dover, 1964.