Ridley, B. K. <br/><br/>
The physical environment / 
by B. K. Ridley. 
 - Chichester, Eng. :  Ellis Horwood,  1979. 
 - 236 p ;  il. ;  24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0470267453 (Halsted)  8.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences.<br/>Astronomy.