TY  - BOOK
AU  - Posamentier 
AU  - Krulik, Stephen
TI  - Problem-solving strategies for efficient and elegant solutions : a resource for the mathematics teacher 
SN  - 0803966989 
U1  - 510.19 POS 1998 
PY  - 1998///
CY  - Thousand Oaks
PB  - Corwin Press
KW  - Problem solving
ER  -