APA (7th ed.) Citation

Easton, W. H. (1943). Subsurface structure and oil possibilities of parts of Edwards, Richland, and Wabash Counties, Illinois. State Geological Survey.

Chicago Style (17th ed.) Citation

Easton, William Heyden. Subsurface Structure and Oil Possibilities of Parts of Edwards, Richland, and Wabash Counties, Illinois. Urbana: State Geological Survey, 1943.

MLA (9th ed.) Citation

Easton, William Heyden. Subsurface Structure and Oil Possibilities of Parts of Edwards, Richland, and Wabash Counties, Illinois. State Geological Survey, 1943.

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