Conference on "Environmental future", Finland, 27 June-3 July, 1971 <br/><br/>
The environmental future  ; proceedings of the first International conference / 

 - London:  Macmillan,  1972 
 - xiv, 660p. Index 
<br/><br/><label>Dewey Class. No.: </label>304.2  / C748.EF