TY  - BOOK
ED  - International Commission on Mathematical Instruction.
ED  - Unesco
TI  - New trends in mathematics teaching
T2  - The Teaching of basic sciences
AV  - QA11.A1 N38
U1  - 510/.7/1 
PY  - 1966///-
CY  - [Paris]
PB  - Unesco
KW  - Mathematics x Study and teaching x Collected works
ER  -