Environmental health criteria 231 :  Bentonite, kaolin, and selected clay minerals. 

 - Geneva.  World health organization.  2005. 
 - xvi, 175 p.  ill.  21 cm 
<br/><br/><label>ISBN: </label>9789241572316 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental health.
<br/><br/><label>National Library of Medicine Call No.: </label>WA 30 E 2005