Author
Geological Survey (U.S.)
11
Arkansas Geological Commission
4
Arkansas Soil and Water Conservation Commission
4
United States. Soil Conservation Service
4
Westerfield, Paul W.
3
Plafcan, Maria
2
Bonck, J. P.
1
Edds, Joe, 1924-
1
Freiwald, D. A.
1
Huff, Glenn F.
1
Louisiana. Department of Transportation and Development
1
Morris, Edward E.
1
Poynter, David T.
1
Spencer, James L.
1
Taylor, R. E. 1934-
1
Touschner, Sharon T.
1