edited by Stanley E. Church, Paul von Guerard, and Susan E. Finger ; prepared in cooperation with the U.S. Department of Agriculture (USDA) Forest Service, U.S. Bureau of Land Management, U.S. Environmental Protection Agency

U.S. Dept. of the Interior, U.S. Geological Survey 2007 Geological Survey professional paper 1651

: set , v. 1 , v. 2

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