TY  - BOOK
AU  - Beth Evert W
AU  -  Piaget Jean
TI  - Mathematical epistemology and psychology. Translat
T2  - Synthese Library
U1  - R2:(B), K6 
PY  - 1966///
CY  - Dordrecht
PB  - Reidel          
KW  -  Philosophy
KW  - Epistemology
N1  - Bibliography: P 313-17
ER  -