Sivakumar, M. <br/><br/>
Global environment series. :  [videorecording] 

 - TVE Prince :  New Delhi,  1993. 
 - 1Videodisk (49 min) 
 - 58mins 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air quality.<br/>Environnement.<br/>Water quality.
<br/><br/><label>LC Class. No.: </label>RD582.9  / .C37A3