Economic Commission For Europe <br/><br/>
Ece symposium on problems relating to environment 
by Economic Commission For Europe 
 - New York  United Nation  1971 
 - vii, 386p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment.
<br/><br/><label>Dewey Class. No.: </label>O19 Un3