APA (7th ed.) Citation

Barnett, R. L. (1986). Coal occurrence and general geology in the Townley 7.5-minute quadrangle, Walker County, Alabama. Geological Survey of Alabama.

Chicago Style (17th ed.) Citation

Barnett, Robert L. Coal Occurrence and General Geology in the Townley 7.5-minute Quadrangle, Walker County, Alabama. [Tuscaloosa, Ala.]: Geological Survey of Alabama, 1986.

MLA (9th ed.) Citation

Barnett, Robert L. Coal Occurrence and General Geology in the Townley 7.5-minute Quadrangle, Walker County, Alabama. Geological Survey of Alabama, 1986.