Udías Vallina, Agustín. <br/><br/>
Principles of seismology / 
Agustín Udías. 
 - Cambridge ;;New York :  Cambridge University Press,  1999 
 - xiv, 475 p. :  ill., maps   26 cm. 
<br/><br/>Includes bibliographical references (p. 458-467) and index. 
<br/><br/><label>ISBN: </label>0521624347;0521624789 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seismology.
<br/><br/><label>Dewey Class. No.: </label>551.22  / UDP,1999