Tripathi, Tripti <br/><br/>
Know all about earth: the blue marvel! 
Tripti Tripathi 
 - 1st ed 
 - New Delhi  Pearson  2008 
 - 1 v. (unpaged) : col. ill 
<br/><br/><label>ISBN: </label>9788179931776 
<br/><br/><label>Dewey Class. No.: </label>550 TRI