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Author/Creator
- Geological Survey (U.S.)15
- Barlow, Lora K.1
- Bednar, Anthony J.1
- Boughton, Gregory K.1
- Bragg, Heather M.1
- Burkhardt, M. R. (Mark R.)1
- Bushon, Rebecca N.1
- Chang, Ming1
- Chapelle, Frank1
- Charlotte (N.C.)1
- Cleasby, Thomas E.1
- Eash, David A.1
- Furlong, Edward T.1
- Garbarino, John R.1
- Hornewer, Nancy J.1
- Iowa. Department of Transportation1
- Iowa. Highway Research Board1
- Johnson, Dave R.1
- Johnson, Gary P., 1969-1
- Koltun, G. F.1