APA
Bolt B. A., . (2000). Earthquakes. New York: W.H.Freeman.
Chicago
Bolt Bruce A, . 2000. Earthquakes. New York: W.H.Freeman.
Harvard
Bolt B. A., . (2000). Earthquakes. New York: W.H.Freeman.
MLA
Bolt Bruce A, . Earthquakes. New York: W.H.Freeman. 2000.
