A Text Book of Industrial Chemistry (G.C.E A/L) :  Unit -15. 

 - 1st Ed. 
 - Kandy :   ab Publishers,   2011. 
 - 180 p. 
<br/><br/><label>ISBN: </label>9789555226073 
<br/><br/><label>Dewey Class. No.: </label>540  / RAN