TY  - BOOK
AU  - Glasersfeld,Ernst von
ED  - Kluwer Academic Publishers
TI  - Radical constructivism in mathematics education ; Ernst von Glasersfeld
SN  - 0792312570
U1  - 510.71 23
PY  - 1991///.
CY  - Dordrecht: 
PB  - Kluwer Academic, 
KW  - Mathematics
KW  - Study and teaching
ER  -