Nirmala, G. <br/><br/>
Paristhithiyude varthamanam / 

 - Kozhikode :  Mathrubhumi Books ,  2010. 
 - 200p 
<br/><br/><label>ISBN: </label>9788182649583 
<br/><br/><label>Subjects--Index Terms: </label>Environmental Science