Encyclopedia of chemical technology / 
edited by Raymond E. Kirk and Donald F. Othmer. 
 - 3rd ed. 
 - New York :  John Wiley,  c 1983. 
 - Vols. ;  27 cm. 
<br/><br/>V. 22- Sulfonation and Sulfonation to thorium compounds ; 
<br/><br/>338  338 
<br/><br/><label>ISBN: </label>0-471-020-75-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry--Encyclopedias.--Technical
<br/><br/><label>Dewey Class. No.: </label>660.3 / K635