"Wold , Edward" <br/><br/>
On the Brink of extinction : Conserving the diversity of life 

 - Washington  Worldwatch Institute  1987 
 - 54p. 
<br/><br/><label>ISBN: </label>916468798 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diversity of life
<br/><br/><label>Dewey Class. No.: </label>333.95 WOL