TY  - BOOK
AU  -  Blacker C.P.
TI  - Problem families: five inquiries
U1  - 362.82 
PY  - 1952///
CY  - London
PB  - Eugenics Society
KW  - Social Problems
KW  - Family Relations
KW  - Family
N2  -  Family, Family Relations, Social Problems
ER  -