APA (7th ed.) Citation

McWilliams, R. G. (1970). Gravity survey of Clarke County, Alabama. Geological Survey of Alabama, Geophysics Division.

Chicago Style (17th ed.) Citation

McWilliams, Richebourg G. Gravity Survey of Clarke County, Alabama. University, Ala: Geological Survey of Alabama, Geophysics Division, 1970.

MLA (9th ed.) Citation

McWilliams, Richebourg G. Gravity Survey of Clarke County, Alabama. Geological Survey of Alabama, Geophysics Division, 1970.