Cita APA

Siebert, L., Simkin, T., & Kimberly, P. (2010). Volcanoes of the world (3rd ed.). Smithsonian Institution.

Citación estilo Chicago

Siebert, Lee, Tom Simkin, and Paul Kimberly. Volcanoes of the World. 3rd ed. Washington, D.C. : Berkeley ; University of California Press: Smithsonian Institution, 2010.

Cita MLA

Siebert, Lee, et al. Volcanoes of the World. 3rd ed. Smithsonian Institution, 2010.