Manivasakam, N. <br/><br/>
Environmental pollution / 
N. Manivasakam. 
 - 2nd ed. 
 - New Delhi :  National book trust,  1989 
 - viii, 146p. :  ill., plates ;  21x14cm. 
<br/><br/> Includes bibliography and index 
<br/><br/><label>ISBN: </label> Rs.16 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECOLOGY
<br/><br/><label>Dewey Class. No.: </label>363.73  / MAN-ENV