TY  - BOOK
AU  - Dienes,Zoltan Paul
TI  - Mathematics in primary education: learning of mathematics by young children 
AV  - LB1589 M3.3
PY  - 1966///
CY  - Hamburg (Al. Fed.)
PB  - UNESCO, Institute for Education
KW  - Matemáticas
KW  - Estudio y enseñanza (Elemental)
ER  -