Worsfold, Paul. <br/><br/>
Encyclopedia of Analytical Science Volume 7 (P-Q) 
Worsfold, Paul. 
 - New York  Elsevier Academic Press  2005 
 - 2nd ed. 
<br/><br/><label>ISBN: </label>0127641009 
<br/><br/><label>LC Class. No.: </label>QD-75.5-.E53-2005