Tiwari, B.K. <br/><br/>
Assessment of air pollution in Hundung cement factory and its environment  
B.K. Tiwari, H.N. Pandey and  S.C. Katiyar 
 - Shillong  NEHU,Centre for Eco-Development  [19-?] 
 - 11p.: plates;  28cm. 
<br/><br/><label>Dewey Class. No.: </label>DB614.71207205417  / TIW