TY  - BOOK
AU  - Ponsioen, J. A.
AU  - Ponsioen, J. A.
TI  - Analysis of social change reconsidered : sociological study
U1  - Y1:3 
PY  - 1962///
CY  - Hague
PB  - Mouton & Co.
KW  - Y1:3
ER  -