TY  - BOOK
AU  - London,Robert
ED  - Janson Publications
TI  - Nonroutine problems: doing mathematics 
SN  - 0939765306
U1  - 510.76 
PY  - 1989///.
CY  - Rhode Island: 
PB  - Janson, 
KW  - Mathematics
KW  - Examinations
ER  -