Udias, Agustin <br/><br/>
Principle of  Seismology 
/ by Agustin Udias 
 - UK:   Cambridge University press,   1999. 
 - xii, 475p. 
<br/><br/><label>ISBN: </label>521624789 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth Science<br/>Elastic waves<br/>Ray Theory<br/>Seismology
<br/><br/><label>Dewey Class. No.: </label>551.22  / UDI/P