Cita APA (7th ed.)

Bolt, B. A. (1993). Earthquakes (Newly revised and expanded.). W.H. Freeman.

Cita Chicago (17th ed.)

Bolt, Bruce A. Earthquakes. Newly revised and expanded. New York: W.H. Freeman, 1993.

Cita MLA (9th ed.)

Bolt, Bruce A. Earthquakes. Newly revised and expanded. W.H. Freeman, 1993.