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The glacial boundary in southern Illinois / H.B. Willman and John C. Frye.
- Format:
- Book
- Author/Creator:
- Willman, H. B. (Harold Bowen), 1901-1984.
- Series:
- Circular (Illinois State Geological Survey) ; 511.
- Circular / Illinois State Geological Survey Division ; 511
- Language:
- English
- Subjects (All):
- Glacial epoch--Illinois.
- Glacial epoch.
- Illinois.
- Physical Description:
- 23 pages : maps ; 28 cm.
- Place of Publication:
- [Chicago] : Illinois Institute of Natural Resources ; Urbana, Ill. : Illinois State Geological Survey Division, 1980.
- Notes:
- Bibliography: page 23.
- OCLC:
- 7597854
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