TY  - BOOK
AU  - Schoenfeld, Alan H
TI  - Mathematical problem solving
SN  - 0-12-628871-2.
AV  - QA63.S35 
CY  - Orlando
KW  -  exercises
KW  -  Mathematics--problems
KW  -  Problem solving--Study and teaching
KW  - Mathematics
KW  - Problem solving
ER  -