Brahma Nand <br/><br/>
SPHERICAL HARMONICS & PARTIAL DIFFERENTIAL EQUATIONS FOR P.G. CLASSES 

 - 3rd Ed. 
 - Meerut  Kedar Nath Ram Nath, Meerut   1966 
<br/><br/><label>Dewey Class. No.: </label>515.53  / BRA/S