Seligman, Edwin R. A. Ed. . <br/><br/>
Seligman's Encyclopaedia of the social sciences, Vol. 9B  Lefroy - Machine political 

 - 1st. . 
 - New Delhi:  Cosmo Publications,  2006. 
 - 340p. :  28cm. . 
<br/><br/><label>ISBN: </label>8130704900 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History<br/>Social sciences<br/>Sociology
<br/><br/><label>Dewey Class. No.: </label>300.3  / SEL-E 891