TY  - BOOK
T1  - The art of problem posing /
DA  - c1983.
CY  - Hillsdale, N.J.:
AU  - Brown, Stephen I.
AU  - Walter, Marion I.,
CN  - QA63
CN  - QA63
PB  - L. Erlbaum,
PP  - Hillsdale, N.J.:
PY  - c1983.
ID  - 120991
KW  - Problem solving.
SN  - 0898597250
TI  - The art of problem posing /
ER  -