Paristhithi parichayakosham (Malayalam) 

 - Kochi  Kerala Sastra Sahitya Parishad  2000 
 - 220p. 
<br/><br/><label>Subjects--Index Terms: </label>Environmental sciences-Dictionaries 
<br/><br/><label>Dewey Class. No.: </label>363.7  / SHI