Bullen, K. E. <br/><br/>
An introduction to the theory of seismology / 
K.E. Bullen & Bruce A. Bolt. 
 - 4th ed. 
 - Cambridge, UK :  Cambridge University Press,  c1985. 
 - xvii, 499 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>0521283892 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seismology.