APA Citation

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

Chicago Style Citation

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

MLA Citation

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

Warning: These citations may not always be 100% accurate.