Kolata, Dennis R. <br/><br/>
Ordovician K-bentonites of Eastern North America. 

 - Colorado :  Geol.Soc.of America,  1996. 
 - 84 p. :  il. ;  28 cm 
 - Special Paper  313 .
<br/><br/><label>ISBN: </label>0813723132 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Substancias útiles<br/>K--Bentonita
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>553.6