APA (7th ed.) Citation

Prager, E. J. (2009). Earthquakes and volcanoes [electronic resource]. Chelsea House.

Chicago Style (17th ed.) Citation

Prager, Ellen J. Earthquakes and Volcanoes [electronic Resource]. New York: Chelsea House, 2009.

MLA (9th ed.) Citation

Prager, Ellen J. Earthquakes and Volcanoes [electronic Resource]. Chelsea House, 2009.