TY  - BOOK
AU  - Herr,Ted
AU  - Johnson,Ken
TI  - Problem solving strategies, Crossing the river with dogs
SN  - 1559530685
AV  - QA63 H47 1994
PY  - 1994///
CY  - Berkeley, California
PB  - Key Curriculum Press
KW  - lemb
KW  - MatemÃ¡ticas
KW  - SoluciÃ³n de problemas
ER  -