Geology and mineral resources of the Alexis quadrangle - Wanless, Harold R. (Harold Rollin), 1899-1970. (Urbana, Printed by authority of the state of Illinois [Springfield, Jeffersons printing & stationery co.], 1929)
At head of title: State of Illinois. Department of registration and education. Division of the State geological survey.
Four folded plates (maps, and 2 diagrams) in pocket.
Bibliographical references.
Keywords: Geology -- Illinois; Mines and mineral resources -- Illinois