APA (7th ed.) Citation

Barker, R. A., & Ardis, A. F. (1992). Configuration of the base of the Edwards-Trinity aquifer system and hydrogeology of the underlying pre-Cretaceous rocks, west-central Texas. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Barker, René A., and Ann F. Ardis. Configuration of the Base of the Edwards-Trinity Aquifer System and Hydrogeology of the Underlying Pre-Cretaceous Rocks, West-central Texas. Austin, Texas: U.S. Geological Survey, 1992.

MLA (9th ed.) Citation

Barker, René A., and Ann F. Ardis. Configuration of the Base of the Edwards-Trinity Aquifer System and Hydrogeology of the Underlying Pre-Cretaceous Rocks, West-central Texas. U.S. Geological Survey, 1992.