APA (7th ed.) Citation

Evans, J. G., & Geisler, T. M. (2001). Geologic field-trip guide to Steens Mountain Loop Road, Harney County, Oregon. U.S. Geological Survey ; Bureau of Land Management.

Chicago Style (17th ed.) Citation

Evans, James George, and Thresa M. Geisler. Geologic Field-trip Guide to Steens Mountain Loop Road, Harney County, Oregon. Menlo, CA : [Washington, D.C.?]: U.S. Geological Survey ; Bureau of Land Management, 2001.

MLA (9th ed.) Citation

Evans, James George, and Thresa M. Geisler. Geologic Field-trip Guide to Steens Mountain Loop Road, Harney County, Oregon. U.S. Geological Survey ; Bureau of Land Management, 2001.