TY  - BOOK
AU  - Witkin, H.A.  [...et.al]
TI  - Psychological differentiation: studies of development 
U1  - 155.4 23
PY  - 1962///
CY  - New York
PB  - Wiley
KW  - Genetic psychology
KW  - Child Development.
N1  - Includes index
ER  -