APA (7th ed.) Citation

Geological Survey (U.S.), North Carolina. Department of Environment, Health, and Natural Resources, Daniel, C. C., III, & Payne, R. A. (1990). Hydrogeologic unit map of the Piedmont and Blue Ridge Provinces of North Carolina. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Health North Carolina. Department of Environment, Charles C. Daniel, III, and Robert A. Payne. Hydrogeologic Unit Map of the Piedmont and Blue Ridge Provinces of North Carolina. Raleigh, N.C.: The Survey, 1990.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Hydrogeologic Unit Map of the Piedmont and Blue Ridge Provinces of North Carolina. The Survey, 1990.