Bell, A. H., & Cohee, G. V. (1939). Recent development in Illinois with discussion of producing formations below McClosky "sand". State Geological Survey.
Chicago Style (17th ed.) CitationBell, A. H., and George Vincent Cohee. Recent Development in Illinois with Discussion of Producing Formations Below McClosky "Sand". Urbana, Ill.: State Geological Survey, 1939.
MLA (9th ed.) CitationBell, A. H., and George Vincent Cohee. Recent Development in Illinois with Discussion of Producing Formations Below McClosky "Sand". State Geological Survey, 1939.
Warning: These citations may not always be 100% accurate.