TY - BOOK ID - 137619294 TI - Frequency of debris flows in Grand Canyon AU - Webb, Robert H. AU - Griffiths, Peter G. AU - Klearman, Tillie A. AU - Geological Survey (U.S.) AU - Grand Canyon Monitoring and Research Center. PY - 2003 PB - [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, DB - UniCat KW - Debris avalanches UR - https://www.unicat.be/uniCat?func=search&query=sysid:137619294 AB - ER -