Ray, M. <br/><br/>
Theory of convergence :  for postgraduate students / 
by M. Ray, Harswarup Sharma 
 - Agra :  The Book store,  1959 
 - 112 p. :  ill. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Convergence
<br/><br/><label>Dewey Class. No.: </label>512.83