TY  - BOOK
AU  - Brown,Stephen I.
AU  - Walter,Marion I.
TI  - The art of problem posing
SN  - 0805849777 (pbk.)
PY  - 2012///
CY  - New York
PB  - Routledge
KW  - Problem solving
N1  - Includes bibliographical references and indexes
ER  -