SNELL,F.D <br/><br/>
COLORIMETRIC METHODS OF ANALYSIS 

 - NEW YORK  VAN NOSTRAND REINHOLD   1970 
 - xii,625p  ill 
<br/><br/><label>ISBN: </label>0761226672 
<br/><br/><label>LC Class. No.: </label>MED QD113  / S62