Francis, Peter  <br/><br/>
Volcanoes / 
by Peter Francis 
 - Harmondsworth :  Penguin Books Ltd.,  1976 
 - 368 p. :  ill. ;  20 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0140218971 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Volcanoes