APA (7th ed.) Citation

Sheets, P. D., & Grayson, D. K. (1979). Volcanic activity and human ecology. Academic Press.

Chicago Style (17th ed.) Citation

Sheets, Payson D., and Donald K. Grayson. Volcanic Activity and Human Ecology. New York: Academic Press, 1979.

MLA (9th ed.) Citation

Sheets, Payson D., and Donald K. Grayson. Volcanic Activity and Human Ecology. Academic Press, 1979.