TY  - BOOK
AU  - Howard Charles F
AU  -  Dumas Enoch
TI  - Teaching contemporary mathematics in the elementar
T2  - Exploration Series In Education
U1  - T15:3(B), K6 
PY  - 1966///
CY  - New York
PB  - Harper and Row U S A    
KW  - Primary Education
ER  -