Roy, Arup Kumar  <br/><br/>
Electronics Science Projects / 
Arup Kumar Roy 
 - Delhi:  Business Promotion Bureau,  1973. 
 - 64p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>621.381  / ROY/E