TY  - BOOK
AU  - Ponsioen J. A.
TI  - National development :  A sociological contribution.   
T2  - Institute of Social Studies, Publication, 18
U1  - X:77:(Y), K8 
PY  - 1968///
CY  - Hague
PB  - Mouton          
KW  - Economic Development
ER  -