Science, A foundation course: Chemical reactions 

 - 3rd Edition 
 - Milton Keynes  Open University  1981 
 - 44p. 
<br/><br/><label>ISBN: </label> UKP 2.95 
<br/><br/><label>Source: </label> UKP 2.95 
<br/><br/><label>Dewey Class. No.: </label>500 SCI