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Author/Creator
- Armstrong, Thomas R.1
- Bailey, Scott, 1948-1
- Barton, Christopher Cramer1
- Baskerville, Charles A.2
- Camerlo, Rion H.1
- Carr, Michael D.1
- Day, Warren C.2
- Dennen, William H.1
- Edgar, N. Terence1
- Geological Survey (U.S.)15
- Grantz, Arthur, 1927-20211
- Grim, Muriel S.1
- Harrison, Richard W.1
- Klein, T. L.1
- Massachusetts. Department of Public Works2
- Middendorf, Mark A.1
- Minnesota Geological Survey1
- Minnesota. Division of Minerals1
- Missouri. Division of Geology and Land Survey1
- Mullen, Michael W.1