Purushothaman,A Sunita <br/><br/>
encyclopedia of awesome nature/by A Sunita Purushothaman 

 - New delhi  Book palace  2004 
 - 216p. 
<br/><br/><label>ISBN: </label>8171872018 
<br/><br/><label>Dewey Class. No.: </label>523.2  P977En