APA (7th ed.) Citation

Major, R. L. (1967). Mineral resources and mineral industries of the East-Central Illinois region. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Major, Robert L. Mineral Resources and Mineral Industries of the East-Central Illinois Region. Urbana: Illinois State Geological Survey, 1967.

MLA (9th ed.) Citation

Major, Robert L. Mineral Resources and Mineral Industries of the East-Central Illinois Region. Illinois State Geological Survey, 1967.