Gray, J. M. <br/><br/>
Geodiversity :  valuing and conserving abiotic nature / 
Murray Gray. 
 - Chichester :  Wiley,  2004. 
 - xiii, 434 p. :  ill., maps ;  25 cm. 
<br/><br/>Includes bibliographical references (p. [373]-409) and index. 
<br/><br/><label>ISBN: </label>0470848952 0470848960 (pbk.)  RM201.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology.<br/>Biological diversity.<br/>Conservation of natural resources.