APA (7th ed.) Citation

Warren, W. M. (1976). Sinkhole occurrence in western Shelby County, Alabama. Geological Survey of Alabama, Water Resources Division.

Chicago Style (17th ed.) Citation

Warren, William M. Sinkhole Occurrence in Western Shelby County, Alabama. University: Geological Survey of Alabama, Water Resources Division, 1976.

MLA (9th ed.) Citation

Warren, William M. Sinkhole Occurrence in Western Shelby County, Alabama. Geological Survey of Alabama, Water Resources Division, 1976.