INTERNATIONAL conference on maintenance of the biosphere (3r <br/><br/>
Maintenance of the biosphere 
/edited by Nicholas Polunin, John H.Burnett 
 - Edinburgh  Edinburgh University Press  1990 
 - xvi, 228 p. 
<br/><br/> Includes references and index. 
<br/><br/><label>ISBN: </label>748601422 
<br/><br/><label>Dewey Class. No.: </label>577  / INT