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Author/Creator
- Geological Survey (U.S.)19
- Dillow, Jonathan J. A.2
- Alexander, Terry W.1
- Arthur, J. Kerry1
- Asquith, William H.1
- Baltzer, Robert A.1
- Barringer, Julia L.1
- Berkas, Wayne R.1
- Butler, David L. (David Louis), 1946-1
- Cortland County (N.Y.). Planning Department1
- Delaware. Department of Transportation1
- Douglas County (Nev.)1
- Duerr, A. D.1
- Florida. Department of Environmental Protection1
- Goode, Daniel J.1
- Hornberger, G. Z. (George Z.)1
- Ingebritsen, S. E.1
- Johnsson, Patricia A.1
- Jones, M. A. (Myrtle Anne), 1952-1
- Judd, Linda J.1