Spellerberg, Ian F. <br/><br/>
Biological conservation / 
Ian F. Spellerberg, Steve Hardes 
 - Cambridge :  Cambridge University Press,  1992 
 - 123 p. :  ill. ;  23 cm. 
 - Biology in focus .
<br/><br/>Bibliography: P.116-120 
<br/><br/><label>ISBN: </label>0521397863 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological diversity conservation<br/>Nature conservation