APA (7th ed.) Citation

Richter, D. H., & Geological Survey. (1973). Reconnaissance geologic map of the Nabesna A-4 quadrangle, Alaska. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Richter, Donald H., and Geological Survey. Reconnaissance Geologic Map of the Nabesna A-4 Quadrangle, Alaska. Washington, D.C.: Dept. of the Interior, U.S. Geological Survey, 1973.

MLA (8th ed.) Citation

Richter, Donald H., and Geological Survey. Reconnaissance Geologic Map of the Nabesna A-4 Quadrangle, Alaska. Dept. of the Interior, U.S. Geological Survey, 1973.