Summary of the geology of the Chicago area
By: [by] H. B. Willman.
Series: Illinois. State Geological Survey. Circular; 460; Circular (Illinois State Geological Survey) ;; 460.
Publisher: Illinois State Geological Survey
Published: 1971
Place of publication: Urbana
Language: eng
Number of pages: 77
Subjects: Geology -- Illinois -- Chicago metropolitan area.
Notes: Bibliography: p. 74-77.
Cover title.