Cita APA (7th ed.)

Gates, A. E. (2007). Encyclopedia of earthquakes and volcanoes (3rd ed.). Facts on File.

Cita Chicago (17th ed.)

Gates, Alexander E. Encyclopedia of Earthquakes and Volcanoes. 3rd ed. New York: Facts on File, 2007.

Cita MLA (8th ed.)

Gates, Alexander E. Encyclopedia of Earthquakes and Volcanoes. 3rd ed. Facts on File, 2007.