TY  - SER
ED  - International Commission on Mathematical Instruction.
ED  - Unesco.
TI  - New trends in mathematics teaching
T2  - The Teaching of basic sciences
SN  - 9231010166
U1  - 510.7 UNE 
PY  - 1973///
CY  - Paris
PB  - Unesco.
KW  - Mathematics
KW  - Study and teaching
ER  -