APA (7th ed.) Citation

Rice, C. L., Ping, R. G., & Barr, J. L. (1977). Geologic map of the Belfry quadrangle, Pike County, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Rice, Charles L., Russell G. Ping, and J. L. Barr. Geologic Map of the Belfry Quadrangle, Pike County, Kentucky. Reston, Va.: U.S. Geological Survey, 1977.

MLA (9th ed.) Citation

Rice, Charles L., et al. Geologic Map of the Belfry Quadrangle, Pike County, Kentucky. U.S. Geological Survey, 1977.