TY  - BOOK
AU  - UNESCO
TI  - New trends in mathematics teaching: Tendances nouvelles de lenseignment des mathematiques 
U1  - 510.71 
PY  - 1972///
CY  - Paris
PB  - Unesco
KW  - Trends in mathematics
N1  - Vol 1: 1966
Vol 2: 1970; Vol 1: 1966
Vol 2: 1970
ER  -