TY  - BOOK
AU  - Dyer H S
AU  - Klain Robert
AU  - Lord F M
ED  - Educational Testing Service. Princeton
TI  - Problems in mathematical education
U1  - 375.51 
PY  - 1956///
CY  - New Jersey
PB  - ETS
KW  - Curriculum
KW  - Mathematical education
ER  -