Gupta, R.C., Saxena, P.N. <br/><br/>
Viva-voce in advanced physics : vol.I 

 - 13th ed. 
 - Meerut  Pragati Prakashan  1988 
 - vi, 368p, 22cm 
<br/><br/><label>Dewey Class. No.: </label>530.076,  / D, gup