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Loess thickness and its effect on soils in Illinois
- Loess thickness and its effect on soils in Illinois / J.B. Fehrenbacher, I.J. Jansen, K.R. Olson. -- Champaign : Univ. of Illinois, 1986. -- 14 s. : 4 obr., 3 vol. príl. -- (Bulletin 782). pôdy Illinois * pôdy sprašové * spraš
Number of the records: 1