APA (7th ed.) Citation

Richter, D. H. (1976). Geologic map of the Nabesna quadrangle, Alaska. The Survey.

Chicago Style (17th ed.) Citation

Richter, Donald H. Geologic Map of the Nabesna Quadrangle, Alaska. Reston, Va.: The Survey, 1976.

MLA (9th ed.) Citation

Richter, Donald H. Geologic Map of the Nabesna Quadrangle, Alaska. The Survey, 1976.