Udias, Agustin <br/><br/>
Principles of seismology / 
Udias, Agustin. 
 - Cambridge:  Cambridge University Press,  1999. 
 - xiv,475p.; 24cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>521624789 
<br/><br/><label>Dewey Class. No.: </label>551.22 UDI