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Peter G. Griffiths

1 book

Initiation and Frequency of Debris Flows in Grand Canyon, Arizona: Usgs Open-File Report 96-491 by Robert H. Webb, Melis S. Melis, Peter G. Griffiths

Initiation and Frequency of Debris Flows in Grand Canyon, Arizona: Usgs Open-File Report 96-491

Robert H. Webb, Melis S. Melis, Peter G. Griffiths

44 pages • paperback

nonfiction politics