Cross, Alan <br/><br/>
Essential primary science / 
Alan Cross. 
 - New York :  Open University Press,  2009. 
 - 318 p.:   ill.  24 cm. 
<br/><br/> Includes index 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-0-335234-61-5 
<br/><br/><label>LC Class. No.: </label>507 C88e