Brantley, S. R., & Myers, B. (2000). Mount St. Helens, from the 1980 eruption to 2000. [publisher not identified].
Chicago Style (17th ed.) CitationBrantley, Steven R., and Bobbie Myers. Mount St. Helens, from the 1980 Eruption to 2000. [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey: [publisher not identified], 2000.
MLA (9th ed.) CitationBrantley, Steven R., and Bobbie Myers. Mount St. Helens, from the 1980 Eruption to 2000. [publisher not identified], 2000.
Warning: These citations may not always be 100% accurate.