Spectrum samanya gyan 2006 

 - New Delhi  Spectrum Pub.  2006 
 - 693p. 
<br/><br/><label>ISBN: </label>9788179301906 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Knowledge
<br/><br/><label>Dewey Class. No.: </label>H 001 SPE