"McElroy, Mark" <br/><br/>
GCE O-Level Chemistry 

 - Singapore  Longman,Longman Singapore Publishers (Pte) Ltd  1990 
 - 347 
<br/><br/><label>ISBN: </label>9971892154 
<br/><br/><label>Dewey Class. No.: </label>540  / T-2788