Ash-flow tuffs / 
edited by Charles E.Chaplin and Wolfgang E.Elston 
 - Boulder, Colo :  The Geological Society of America,  1979 
 - 211 p. :  ill. ;  28 cm. 
 - Special paper (Geological Society of America) ;  180 .
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0813721806 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Volcanic ash, tuff, etc.