Science, A foundation course: Earthquake waves and the earth's interior 

 - Milton Keynes  Open University  1979 
 - 110p. 
<br/><br/><label>ISBN: </label> UKP 3.25 
<br/><br/><label>Source: </label> UKP 3.25 
<br/><br/><label>Dewey Class. No.: </label>500 SCI