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Displaying 1-3 of 3 results for author "Koppen, Maynard P."
Soil survey of Sac County, Iowa / [by Maynard P. Koppen and John R. Worster] ; United States Department of Agriculture, Soil Conservation Service, in cooperation with Iowa State University Agriculture and Home Economics Experiment Station and Cooperative Extension Service, and the State of Iowa, Department of Soil Conservation.
- Text
- [Washington] : Soil Conservation Service, [1979]
- 1979
- 1 Item
Item details Format Call Number Item Location Text S599.I8 K65 Off-site Soil survey, Webster County, Iowa / [by Maynard P. Koppen], United States Department of Agriculture, Soil Conservation Service, in cooperation with Iowa Agriculture and Home Economics Experiment Station, Cooperative Extension Service, Iowa State University, and the Department of Soil Conservation, State of Iowa.
- Text
- [Washington] : The Service, 1975.
- 1975
- 1 Item
Item details Format Call Number Item Location Text S599.I8 W4 1975 Off-site Soil survey of Calhoun County, Iowa.
- Text
- [Washington, D.C.?] : U.S. Dept. of Agriculture, Soil Conservation Service, 1981.
- 1981
- 1 Item
Item details Format Call Number Item Location Text S599.I8 K64 1981 Off-site
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