APA (7th ed.) Citation

Ewert, J. W., & Swanson, D. A. (1992). Monitoring volcanoes: Techniques and strategies used by the staff of the Cascades Volcano Observatory, 1980-90. U.S. G.P.O. For sale by Book and Open-File Report Sales, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Ewert, John W., and Donald A. Swanson. Monitoring Volcanoes: Techniques and Strategies Used by the Staff of the Cascades Volcano Observatory, 1980-90. Washington, Denver, CO: U.S. G.P.O. For sale by Book and Open-File Report Sales, U.S. Geological Survey, 1992.

MLA (9th ed.) Citation

Ewert, John W., and Donald A. Swanson. Monitoring Volcanoes: Techniques and Strategies Used by the Staff of the Cascades Volcano Observatory, 1980-90. U.S. G.P.O. For sale by Book and Open-File Report Sales, U.S. Geological Survey, 1992.