Investigating chemistry / 
M. J. Denial 
 - 2nd ed. 
 - London :  Heinemann Educational Books,  1981 
 - 565 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0435641662 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry