Dass H. K & Verma Rama <br/><br/>
Mathematical Physics 
/H.K Dass & Rama Verma 
 - New Delhi, India;  S.  Chand & Company PVT LTD;  1997 
 - xvii,1379p.ill;  23.5cm 
<br/><br/><label>ISBN: </label>81-219-1469-8