Author
Geological Survey (U.S.)
11
Alaska. Department of Transportation and Public Facilities
1
American Geophysical Union
1
American Water Resources Association
1
Geological Survey (U.S.). Water Resources Division
1
Geological Survey (U.S.). Water Resources Division. Illinois District
1
Geological Survey (U.S.). Water Resources Division. Louisiana District
1
Geological Survey (U.S.). Water Resources Division. North Dakota District
1
Houston (Tex.)
1
International Society of Soil Science
1
Justus Liebig-Universität Giessen. Geographisches Institut
1