The Sangamon arch
By: [by] L. L. Whiting [and] D. L. Stevenson.
Contributors: Stevenson, D. L. joint author.
Published: 1965
Place of publication: Urbana
Language: eng
Number of pages: 20
Subjects: Geology, Stratigraphic -- Paleozoic; Geology -- Illinois
Notes: Bibliography: p. 19-20.