A Reevaluation of the "Illinoian till plain" and the origin of the gritty loess substratumof Avonburg and Clermont soils in southeastern Indiana by E. E. Gamble ... [et al.]. - Washington Soil Conservation Service 1990. - viii, 109 p. ill.

tlc00030173


Soils--Indiana.

0121-A

A 57.52:41