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Author
- National Atlas of the United States53
- Geological Survey (U.S.)39
- Boundary Solutions, Inc.18
- Cao, Changyong14
- Earle, Carville14
- Heppen, John14
- Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology.14
- Otterstrom, Samuel14
- Arndt, Raymond E.10
- Bawiec, Walter J.10
- Beikman, Helen M.10
- King, Philip B.10
- National Geophysical Data Center10
- Schruben, Paul G.10
- Geological Survey (U.S.) Minerals Information Team9
- Platts9
- Geographic Data Technology, Inc. (GDT)5
- Ver Ploeg, Alan J.5
- Gap Analysis Program (U.S.)4
- Hausel, W. Dan.4