Krauch,C.  <br/><br/>
Chemical reagents : their uses methods of testing for purity and commercial varieties  (Book) 

 - 2nd ed. 
 - Scott  Green wood & Son  1919 
 - 372 p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical tests and reagents
<br/><br/><label>Universal Decimal Class. No.: </label>543.41 KRA  / 5781