Halpen,Daniel. <br/><br/>
On nature :  nature,landscape and natural history. 

 - ed. 
 - Califfonia :  North print.,  1987. 
 - 319  p. ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>nature.