TY  - BOOK
AU  - Freudenthal,Hans
TI  - Mathematics as an educational task
SN  - 9027702357
PY  - 1973///
CY  - Dordrecht
PB  - D. Reidel Publishing Company
KW  - Mathematics
KW  - Study and teaching
KW  - Philosophy
N1  - Bibliography : p.(678)-680
ER  -