Physiographic division of Illinois /

Bibliographic Details
Main Author:	Leighton, Morris M. (Morris Morgan), 1887-1971
Other Authors:	Ekblaw, George Elbert, 1895-, Horberg, Leland, 1910-1955
Format:	Book
Language:	English
Published:	Urbana, [publisher not identified] ; 1948.
Series:	Report of investigations (Illinois State Geological Survey) ; no. 129.
Subjects:	Physical geography > Illinois. Geology > Illinois.

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