APA (7th ed.) Citation

Geological Survey (U.S.), Alpha, T. R., & Myers, B. (1986). Physiographic diagrams of Mount St. Helens, Washington, showing changes in its summit crater, 1984. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Tau Rho Alpha, and Bobbie Myers. Physiographic Diagrams of Mount St. Helens, Washington, Showing Changes in Its Summit Crater, 1984. Reston, Va.: The Survey, 1986.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Physiographic Diagrams of Mount St. Helens, Washington, Showing Changes in Its Summit Crater, 1984. The Survey, 1986.