APA (7th ed.) Citation

Decker, R. (1989). Volcanoes (rev. and updated ed.). Freeman.

Chicago Style (17th ed.) Citation

Decker, Robert. Volcanoes. rev. and updated ed. New York: Freeman, 1989.

MLA (9th ed.) Citation

Decker, Robert. Volcanoes. rev. and updated ed. Freeman, 1989.