Hopkins & Williams chemicals and reagents :  for science and indus try / 
Hopkins & Williams 
 - Export ed. 
 - Essex, England  :  Hopkin & Williams ,  [19-] 
 - xiv, 536 p. :  ill. ;  20 cm. 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical tests and reagents<br/>Chemicals
<br/><br/><label>Dewey Class. No.: </label>540