Heiken, Grant. <br/><br/>
An atlas of volcanic ash / 
Grant Heiken. 
 - Washington :  Smithsonian Institution Press,  1974. 
 - iv, 101 p. ;  26 cm. 
 - Smithsonian contributions to the earth sciences ; no. 12 .
<br/><br/><label>LCCN: </label>73-13519 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Volcanic ash, tuff, etc.<br/>Atlases.