Manivasakan N. <br/><br/>
Environmental Pollution. 

 - 2nd ed. 
 -  National Bk Trust  1984 
 - 146p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment
<br/><br/><label>Dewey Class. No.: </label>363.7  / MAN