Main-channel slopes of selected streams in Iowa for estimation of flood-frequency discharges / by David A. Eash ; prepared in cooperation with the Iowa Department of Transportation and the Iowa Highway Research Board (project HR-456).
Imprint
Iowa City, Iowa : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : U.S. Geological Survey, Information Services [distributor], 2003.