TY  - BOOK
ED  - Unesco-The International Commission of Mathematical Instruction
TI  - Tendances nouvelles de l'enseignement de la  mathematique.v.3, 1972
SN  - 923201016x
U1  - 510.7 U56t 
PY  - 1973///
CY  - Paris
PB  -  Unesco
KW  -  Mathematics
KW  - Study And Teaching Mathematics
KW  - Study And Teaching
ER  -