prasad, P .N. /Amarnath, T. R.  <br/><br/>
Encyclopedia of environment pollution  Vol1- 10 
P . N . prasad and T . R . Amarnath. 
 - New delhi  Cresent publishing  2018 
 - 297p. , ill; 
<br/><br/><label>ISBN: </label>9788183421867