APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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