Nature's last strongholds  an encyclopedia of habitats and conservation 
general editor Robert Burton 
 - Amsterdam  Time-Life Books  1991 
 - 256 p. : ill. ; 31 cm. 
<br/><br/><label>ISBN: </label>0705411125 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature conservation<br/>Conservation of natural resources<br/>National parks and reserves<br/>Natural areas