Floud, Roderick <br/><br/>
Introduction to quantitative methods for historians 
by  Roderick Floud 
 - London,  Routledge,  2006. 
 - 220 P 
<br/><br/><label>ISBN: </label>97890415379267 
<br/><br/><label>Dewey Class. No.: </label>519.502 FLO.I