Author
United States. Bureau of the Census. Data User Services Division
11
United States. Bureau of Land Management. Eastern States Office
8
Geological Survey (U.S.)
5
United States. Environmental Protection Agency
3
United States. Bureau of the Census. Administrative and Customer Services Division
2
Abston, C. C.
1
Alexander, Richard B.
1
Allgeier, Steven C.
1
Ambroziak, Russell A.
1
Goddard Space Flight Center
1
Hawaiian Volcano Observatory
1
Heliker, C. C.
1
Kaas, L. Michael
1
National Center for Education Statistics
1
Olhoeft, G. R.
1
Sander, Kathleen A.
1
Takahashi, Taeko Jane, 1941-
1
United States. Bureau of Economic Analysis. Regional Economic Measurement Division
1
United States. Bureau of Mines
1
United States. Bureau of the Census
1
United States. Environmental Protection Agency. Office of Ground Water and Drinking Water. Technical Support Center
1
United States. Environmental Protection Agency. Office of Research and Development
1
United States. National Aeronautics and Space Administration
1
United States. President
1
Waterloo Centre for Groundwater Research
1
White House Conference on Aging
1
White House Conference on Aging Washington, D.C.)
1
Zihlman, F. N.
1