APA (7th ed.) Citation

Não informado. (1926). Illinois Petroleum. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Não informado. Illinois Petroleum. Urbana, Ill: Illinois State Geological Survey, 1926.

MLA (8th ed.) Citation

Não informado. Illinois Petroleum. Illinois State Geological Survey, 1926.

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