Sehgal Narender K Ed. <br/><br/>
Memoirs of Ruchi Ram Sahni    Pioneer of science popularisation in Punjab 

 - New Delhi  Vigyan         1994 
 - 191p  cm. 
<br/><br/><label>Standard No.: </label>27276 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SCIENCE
<br/><br/><label>Dewey Class. No.: </label>AwM63, N4