Padmasiri S.S. Shashi.  <br/><br/>
Encyclopaedia of humanities and social sciences   vol XXII Velations Industrial to Izuestion 

 - New Delhi<br/>  Anmol Publications  1982 
 - Various pagings 
<br/><br/><label>ISBN: </label>8170415996 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences
<br/><br/><label>Dewey Class. No.: </label>300.3  / ENC