Somajbigyan  Bela Duttagupta 
ogust comte theke marx 
 - Kolkata  Progotishil  c 2012 
 - 239p. 
<br/><br/><label>Standard No.: </label>1716  [RecID from old SOUL v2 database] 
<br/><br/><label>Dewey Class. No.: </label>301  / D.979