APA (7th ed.) Citation

Nelson, S. W., & Grybeck, D. (1980). Geologic map of the Survey Pass quadrangle, Brooks Range, Alaska. The Survey.

Chicago Style (17th ed.) Citation

Nelson, Steven W., and Donald Grybeck. Geologic Map of the Survey Pass Quadrangle, Brooks Range, Alaska. Reston, Va.: The Survey, 1980.

MLA (9th ed.) Citation

Nelson, Steven W., and Donald Grybeck. Geologic Map of the Survey Pass Quadrangle, Brooks Range, Alaska. The Survey, 1980.