Singh, Rama Nand <br/><br/>
Statistics / 
Rama Nand Singh 
 - New Delhi : Random Publications, 2014 
 - xii, 272 pages : illustrations ; 24 cm 
<br/><br/><label>ISBN: </label>9789351114512 
<br/><br/><label>Dewey Class. No.: </label>519.5 SIN