Earliest Wisconsinan sediments and soils
By: [by] John C. Frye ... [et al.].
Contributors: Illinois. Dept. of Registration and Education; Frye, John Chapman, 1912-
Series: Circular -- 485; Circular (Illinois State Geological Survey) -- 485.
Publisher: Illinois State Geological Survey
Published: 1974
Place of publication: Urbana
Language: eng
Number of pages: 12
Subjects: Soils; Glacial epoch; Sediments (Geology); Grond
Notes: Cover title.

At head of title: State of Illinois State Department of Registration and Education.