TY  - BOOK
AU  - Stueben, Michael
AU  - Sandford, Diane
TI  - Twenty years before the blackboard: The lessons and humor of
SN  - 0-88385-525-9
U1  - 510/STU 
PY  - 1998///
CY  - Washington
PB  - Mathematical Association of America
KW  - Mathematics--Study and teaching
KW  - Mathematics
ER  -