Author
Geological Survey (U.S.)
3
United States. Environmental Protection Agency
2
Colorado Geological Survey
1
Geological Survey (U.S.),
1
Hollyday, E. F.
1
Mesko, Thomas O.
1
Swain, Lindsay A.
1
Taggart, Bruce E.
1
Taggart, Bruce E.,
1
Topper, Ralf E.
1
Veve, Thalia D.
1
Veve, Thalia D.,
1
Wilson, Jason C.
1