by S.G. Robson ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Colorado Department of Natural Resources, Division of Water Resources, Office of the State Engineer ... [and others]
by Phil A. Kammerer, Jr. ... [and others] ; U.S. Department of the Interior, U.S. Geological Survey ; prepared in cooperation with the Wisconsin Department of Natural Resources
by J.W. Stewart [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Southwest Florida Water Management District and the Bureau of Geology, Florida Department of Natural Resources