Davies, L. <br/><br/>
O-level chemical calculations / 
L. Davies and M.E. Reay. 
 - London :  The English Universities Press,  1968. 
 - 130 p. ;  18 cm. 
<br/><br/><label>ISBN: </label>2340050721 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry--Problems, exercises, etc.