TY  - BOOK
AU  - Inhelder Barbel,
AU  - Inhelder Barbel,;Piaget, Jean;Parsons, A. (Tr.) Milgram, S. (Tr.)
TI  - Growth of logical thinking from childhood to adolescence
U1  - S:44 
PY  - 1958///
CY  - London
PB  - Routledge & Kegan Paul
KW  - S:44
ER  -