Purushothaman,A Sunita <br/><br/>
Encyclopedia of space and our moving earth/by A Sunita Purushothaman 

 - New delhi  Book palace  2006 
 - 95p. 
<br/><br/><label>ISBN: </label>8171872182 
<br/><br/><label>Dewey Class. No.: </label>523.11103  P977E