Jespersen, Neil D.. <br/><br/>
Comprehensive Analytical Chemistry /  
edited by G. Svehla. 
 - 1st ed /  
 - Amsterdam :   Elsevier Publishing Company. 
 - p.254 :  
<br/><br/><label>ISBN: </label>0-444-42062-2 
<br/><br/><label>Dewey Class. No.: </label>E:3n  / K0.12.2