Gupta, S L etal.. <br/><br/>
Elements of spectroscopy:  atomic molecular and linear physics/ 
by S L Gupta; V Kumar and R C Sharma 
 - 13th edition  
 - Meerut   : Pragati Prakashan  , 1998 
 - 668 pages 
<br/><br/><label>ISBN: </label>81-7566-112-2 
<br/><br/><label>Dewey Class. No.: </label>535.84 GUP/E