APA (7th ed.) Citation

Stevenson, D. L. (1973). The effect of buried Niagaran reefs on overlying strata in southwestern Illinois. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Stevenson, D. L. The Effect of Buried Niagaran Reefs on Overlying Strata in Southwestern Illinois. Urbana: Illinois State Geological Survey, 1973.

MLA (9th ed.) Citation

Stevenson, D. L. The Effect of Buried Niagaran Reefs on Overlying Strata in Southwestern Illinois. Illinois State Geological Survey, 1973.

Warning: These citations may not always be 100% accurate.