Geomorphic segmentation, hydraulic geometry, and hydraulic microhabitats of the Niobrara River, Nebraska--methods and initial results [electronic resource] / by Jason S. Alexander, Ronald B. Zelt, and Nathaniel J. Schaepe ; prepared in cooperation with the Nebraska Game and Parks Commission.
Imprint
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2009.