TY  - BOOK
AU  - Piaget, Jean
AU  - Inhelder, Barbel
AU  - Pomerans, Arnold J
TI  - Child Construction of Quantities
SN  - 0 7100 7887 0
U1  - 155.413 
PY  - 1941///
CY  - New York
PB  - Routledge & Kegan Paul
KW  - Psychology
ER  -