TY  - BOOK
AU  - Watanabe,Kensuke
TI  - Sekaiichi yasashii mondai kaiketsu no jugyo
SN  - 9784478000496
AV  - BF449 .W37
PY  - 2007///
CY  - Tokyo
PB  - Daiyamondosha
KW  - Problem solving
ER  -