Manivasakam, N. <br/><br/>
Environmental pollution 
/ by N.Manivasakam. 
 - New Delhi :  National Book Trust,  1999. 
 - xi, 160 p. ;  22 cm. 
<br/><br/><label>ISBN: </label>8123710348 
<br/><br/><label>Dewey Class. No.: </label>363.730954 MAN  / 1895