Jennings, M. E., Schneider, V. R., & Smith, P. E. (1981). Emergency assessment of Mount St. Helens post-eruption flood hazards, Toutle and Cowlitz rivers, Washington. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationJennings, Marshall E., V. R. Schneider, and P. E. Smith. Emergency Assessment of Mount St. Helens Post-eruption Flood Hazards, Toutle and Cowlitz Rivers, Washington. [Reston, Virginia?]: United States Department of the Interior, Geological Survey, 1981.
MLA (9th ed.) CitationJennings, Marshall E., et al. Emergency Assessment of Mount St. Helens Post-eruption Flood Hazards, Toutle and Cowlitz Rivers, Washington. United States Department of the Interior, Geological Survey, 1981.
Warning: These citations may not always be 100% accurate.