Sasthram ethra lalitham: sarva sasthra patanangaludeyum brihad samaharam (v.6):   paristhithi patanavum bhoomi sasthravum/ 
by Sivadas S (ed.) 
 - Kottayam:  D C Books,  2012. 
 - 982p. 
<br/><br/><label>ISBN: </label>978-81-264-3570-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Studies<br/>Geography<br/>Sciences
<br/><br/><label>Dewey Class. No.: </label>R M 500  / SIV/S.6