APA (7th ed.) Citation

Bell, A. H., & Moulton, G. F. (1929). The Darmstadt anticline and related structures, St. Clair County. State Geological Survey.

Chicago Style (17th ed.) Citation

Bell, A. H., and Gail Francis Moulton. The Darmstadt Anticline and Related Structures, St. Clair County. Urbana, [Ill.]: State Geological Survey, 1929.

MLA (9th ed.) Citation

Bell, A. H., and Gail Francis Moulton. The Darmstadt Anticline and Related Structures, St. Clair County. State Geological Survey, 1929.