APA (7th ed.) Zitazioa

Bolt, B. A. (1999). Earthquakes (4a. ed.). W. H. Freeman.

Chicago Style (17th ed.) Zitazioa

Bolt, Bruce A. Earthquakes. 4a. ed. Nueva York: W. H. Freeman, 1999.

MLA (9th ed.) Zitazioa

Bolt, Bruce A. Earthquakes. 4a. ed. W. H. Freeman, 1999.