Wade, Christopher. <br/><br/>
Understanding Chemistry/ 
Christopher Wade. 
 - London:  G. Bell and Sons,  1972. 
 - 87 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>0713516860 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry--Programmed instruction.