TY  - BOOK
AU  - Reys,Robert E.
TI  - Helping children learn mathematics
SN  - 0471367850 (paper : alk. paper)
AV  - QA135.5 .R49  2001
U1  - 372.7/044 21
PY  - 2001///
CY  - New York
PB  - Wiley
KW  - Mathematics
KW  - Study and teaching (Elementary)
ER  -