Singh, Gurcharan <br/><br/>
Pollution to purity of environment 

 - New Delhi  Deep & Deep publication  2000 
 - viii,124p.  21cm 
<br/><br/><label>ISBN: </label>8176292362 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Pollution
<br/><br/><label>Dewey Class. No.: </label>363.7372  / SIN