Glacial drift in Illinois
Subtitle: thickness and character
By: Kemal Piskin, Robert E. Bergstrom.
Contributors: Bergstrom, Robert Edward, joint author.; Illinois. Dept. of Registration and Education.
Series: Circular - Illinois State Geological Survey ; 490; Circular (Illinois State Geological Survey) ;; 490.
Publisher: Illinois State Geological Survey
Published: 1975
Place of publication: Urbana
Language: eng
Number of pages: 35
Subjects: Drift -- Illinois.
Notes: Bibliography: p. 22-26.
Cover title.
At head of title: State of Illinois. Department of Registration and Education.
"Revision of Circular 416."