Ponsioen, J.A. <br/><br/>
National development ; a sociological contribution 
J. A. Ponsioen 
 - Mouton  The Hague  c1968 
 - 286p.; 25cm.- 
 - Publications of the Institute of social studies; no.18 .
<br/><br/><label>Dewey Class. No.: </label>301.24  / PON