Cita APA (7th ed.)

Scarth, A. (1994). Volcanoes: An introduction (1st U.S. ed.). Texas A&M University Press.

Cita Chicago (17th ed.)

Scarth, Alwyn. Volcanoes: An Introduction. 1st U.S. ed. College Station: Texas A&M University Press, 1994.

Cita MLA (9th ed.)

Scarth, Alwyn. Volcanoes: An Introduction. 1st U.S. ed. Texas A&M University Press, 1994.