Williams, Howel,  1898- <br/><br/>
Volcanology illustrated by Christine McBirney 
Howel Williams and Alexander R. McBirney 
 - San Francisco, CA  Freeman, Cooper  c1979 
 - 397 p.  ill.  27 cm 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Volcanoes<br/>Volcanic ash, tuff, etc.<br/>Volcanism
<br/><br/><label>Dewey Class. No.: </label>551.2  / 1