Sand and gravel resources of northeastern Illinois
By: [by] George E. Ekblaw [and] J. E. Lamar.
Contributors: Lamar, J. E. 1897-1979, joint author.
Published: 1964
Place of publication: Urbana
Language: eng
Subjects: Sand -- Illinois; Gravel -- Illinois
Notes: Bibliography: p. 7-8.
Cover title.