Bullen, K.E. <br/><br/>
An introduction to the theory of seismology / 
K.E. Bullen, Bruce A. Bolt. 
 - 4th ed. 
 - Cambridge, N.Y. :  Cambridge University Press,  1985. 
 - xiii, 499 p. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0521283892 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earthquakes.