Science :  a foundation course / 
prepared by the [Open University] Science Foundation Course Team. 
 - 2nd ed. 
 - Milton Keynes :  Open University Press,  1981. 
 - 46 p. :  ill. 
<br/><br/> At head of title : 
<br/><br/>Unit 1 : 
<br/><br/><label>ISBN: </label>0355080502 (pbk). 
<br/><br/><label>LCCN: </label>55052680     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth.<br/>Earth sciences.<br/>Astronomy.