Bhattacharyya, J.C. <br/><br/>
Thrust area in Astronomy and Astrophysics   
by J.C. Bhattacharyya and V.R. Venugopal 
 - New Delhi  Indian National Science Academy  1984 
 - 43p. 
<br/><br/><label>Dewey Class. No.: </label>520  / N843