Debris flows from tributaries of the Colorado River, Grand Canyon National Park, Arizona / by Robert H. Webb, Patrick T. Pringle, and Glen R. Rink ; prepared in cooperation with the U.S. Bureau of Reclamation.
出版資料
[Reston, Va.?] : Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by the Books and Open-File Reports Section, 1989.