Institute of Science of India <br/><br/>
Proceedings National Institute of Science of India : Series A : Physical Sciences.  Vol 21(1955) - 35(1969) 

 - New Delhi  Institute of Science of India  1955 
 - 357p 
<br/><br/>Institute of Science of India: Proceedings National Institute of Science of India : Series A : Physical Sciences.  Vol 21(1955) - 35(1969).  New Delhi.  Institute of Science of India, 1955.--(506INS)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>506  / PINSAA