Bhardwaj, Anandi  . <br/><br/>
Encyclopaedia of astronomy and space science /  
by Anandi Bhardwaj. 
 - New Delhi :   Anmol Publications ,   2006 
 - 322p ;  
<br/><br/><label>ISBN: </label>81-261-2885-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>B9k  / P6