TY  - BOOK
AU  - Ponsioen,J.A. (Ed.)
AU  - Ponsioen,J.A. (Ed.)
TI  - Social welfare policy : (First collection...contributions to theory)
U1  - Y1:4x 
PY  - 1962///
CY  - S-gravenhage
PB  - Mouton & Co.
KW  - Y1:4x
ER  -