APA (7th ed.) Citation

Prichard, G. E., & Johnston, J. E. (1963). Geology of the Jackson quadrangle, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Prichard, George E., and John E. Johnston. Geology of the Jackson Quadrangle, Kentucky. Reston, Va.: U.S. Geological Survey, 1963.

MLA (9th ed.) Citation

Prichard, George E., and John E. Johnston. Geology of the Jackson Quadrangle, Kentucky. U.S. Geological Survey, 1963.