The child's conception of geometry /
Piaget, Jean,
The child's conception of geometry / by Jean Piaget, Barbel Inhelder and Alina Szeminska ; translated by E. A. Lunzer. - London : Routledge & Kegan Paul, 1960. - 411 p. :
Includes index.
BK462
Geometry concept.---
155.413 / Ge
The child's conception of geometry / by Jean Piaget, Barbel Inhelder and Alina Szeminska ; translated by E. A. Lunzer. - London : Routledge & Kegan Paul, 1960. - 411 p. :
Includes index.
BK462
Geometry concept.---
155.413 / Ge