Elongate drift hills of southern Illinois
By: by John R. Ball
Series: Bulletin of the Geological Society of America -- vol. 51; Bulletin of the Geological Society of America -- v. 51.
Publisher: Geological Society of America
Published: 1940
Place of publication: New York
Language: eng
Number of pages: 970
Subjects: Geology
Notes: Includes bibliographical references (p. 970)