APA (7th ed.) Citation

Blatchley, R. S. (1914). Oil and gas in Bond, Macoupin, and Montgomery counties, Illinois. Illinois State Geological Survey, University of Illinois.

Chicago Style (17th ed.) Citation

Blatchley, Raymond Silliman. Oil and Gas in Bond, Macoupin, and Montgomery Counties, Illinois. Urbana: Illinois State Geological Survey, University of Illinois, 1914.

MLA (9th ed.) Citation

Blatchley, Raymond Silliman. Oil and Gas in Bond, Macoupin, and Montgomery Counties, Illinois. Illinois State Geological Survey, University of Illinois, 1914.