Bullen, K. E.  <br/><br/>
An Introduction to the theory of seismology / 
K. E. Bullen. 
 - 2nd ed. 
 - London :  The Cambridge university press,  1953. 
 - xv, 296 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>324  324 
<br/><br/><label>Subjects--Topical Terms: </label><br/>seismology.
<br/><br/><label>Dewey Class. No.: </label>551.22 / B873i