Clark, John O. E. <br/><br/>
Chemistry /  
John O. E. Clark ; illustrated by Peter Edwards. 
 - [Reprinted]. 
 - [Feltham] :   Hamlyn,   [1982] 
 - 159 p. :   il. ;   18 cm. 
 - Hamlyn All-Colour Paperbacks .
 - Hamlyn All-Colour Paperbacks .