APA (7th ed.) Citation

McIntosh, W. L., & Eister, M. F. (1981). Geologic map index of Oregon. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

McIntosh, Willard L., and Margaret F. Eister. Geologic Map Index of Oregon. Reston, Va.: U.S. Geological Survey, 1981.

MLA (9th ed.) Citation

McIntosh, Willard L., and Margaret F. Eister. Geologic Map Index of Oregon. U.S. Geological Survey, 1981.