UNITED NATIONS ECONOMIC COMMISSION FOR EUROPE <br/><br/>
Updated handbook for the 1979 convention on long-range transboundary air pollution and its protocols 

 - New York  United Nations          2015 
 - 253p  cm. 
<br/><br/> Bibliography: P 197-218. Appendix: P 171-96 
<br/><br/><label>ISBN: </label>978921170931 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>D854.1.N9, N6;Q5/UN