Edward C. Wolf <br/><br/>
On the brink of extinction conserving the diversity of life 

 -  World Watch Paper  1987 
 - 51p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-916468-79-8 
<br/><br/><label>Dewey Class. No.: </label>639.9  / WOL