APA (7th ed.) Citation

Winkler, G. R. (2000). A geologic guide to Wrangell-Saint Elias National Park and Preserve, Alaska. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Winkler, Gary R. A Geologic Guide to Wrangell-Saint Elias National Park and Preserve, Alaska. Washington D.C.,USA: U.S. Geological Survey, 2000.

MLA (9th ed.) Citation

Winkler, Gary R. A Geologic Guide to Wrangell-Saint Elias National Park and Preserve, Alaska. U.S. Geological Survey, 2000.