Cita APA (7th ed.)

Rittmann, A. (1962). Volcanoes and their activity. Interscience Publishers.

Cita Chicago (17th ed.)

Rittmann, Alfred. Volcanoes and Their Activity. New York: Interscience Publishers, 1962.

Cita MLA (9th ed.)

Rittmann, Alfred. Volcanoes and Their Activity. Interscience Publishers, 1962.