APA (7th ed.) Citation

(1995). Maps showing growth of the lava dome at Mount St. Helens, Washington, 1980-1986. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Maps Showing Growth of the Lava Dome at Mount St. Helens, Washington, 1980-1986. Denver, CO: U.S. Geological Survey, 1995.

MLA (9th ed.) Citation

Maps Showing Growth of the Lava Dome at Mount St. Helens, Washington, 1980-1986. U.S. Geological Survey, 1995.