Biblio

Clark, Sydney P. Jr.Structure of the Earth. Englewood Cliffs,New Jersey: Prentice-Hall, Inc., 1971.

Fetzer, Scott. "Earthquakes." World Book Encyclopedia, 1996.

Grady, Sean M. Plate Tectonics: Earth's Shifting Crust. San Diego, California: Lucent Books Inc., 1991.

Kindersley, Dorling. "How the Earth Works." Reader's Digest. 1992: 56-64.

Louie, J. Plate Tectonics, The Cause of Earthquakes. [Online] Available Here, 4 October 1996.

Maton, Anthea, et al. Exploring Earth Science, New Jersey: Prentice Hall, 1995.

"Plate Tectonics." New Encyclopedia Britannica, 1993.

Sattler, Helen Roney and Giulio Naestr. Our Patchwork Planet. New York: Lothrop, Lee & Shepard Books, 1995.

Walker, Jane. Natural Disasters. New York: Alladdin Books Ltd, 1992.