TY  - BOOK
AU  - Piaget, Jean and Inhelder, Barbel
TI  - The child's construction of quantities: : conservation and atomism
SN  - 0710078870
U1  - 155.4 
PY  - 1974///
CY  - London
PB  - ; Routledge & Kegan Paul
KW  - Child Psychology
KW  - Psychology
ER  -