TY  - BOOK
AU  - National Council of Teachers of Mathematics
TI  - Medida
AV  - Q 370 N318.1970
PY  - 1970///
CY  - México
PB  - Trillas
KW  - Medidas
KW  - Aritmética
N1  - Traducción de: Topics in mathematics for elementary school teachers
ER  -