Investigating chemistry :  notes for teachers / 
L. Davies, M. J. Denial, A. W. Locke, M. E. Reay 
 - London :  Heinemann,  1975 
 - 150 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>0435641611 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry