Spencer. J.F.  <br/><br/>
Analytical reagents : standards and tests  (Book) 

 -  Hopkin and Williams Ltd.  1931 
 - 132 p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical tests and reagent--specifications--united states
<br/><br/><label>Universal Decimal Class. No.: </label>543.41 HOP  / 5774