Maintenance of the biosphere :  proceedings of the Third International Conferences on Environmental Future (3rd ed ICEF) / 
edited by Nicholas Polunin and Sir John H. Burnett. 
 - New York :  St. Martin's Press,  1990. 
 - xvi, 228 p. :  ill. ;  24 cm. 
<br/><br/> Proceedings held at the University of Edinburgh, Sept.24-26, 1987, sponsored by the Foundation for Environmental Conservation and the University of Edinburgh. 
<br/><br/><label>ISBN: </label>0312048254 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology--Congresses<br/>Environmental policy--Congresses.
<br/><br/><label>LC Class. No.: </label>GF3  / I57 1987