TY  - BOOK
AU  - Bell,Stephen
AU  - Brown,Peter
AU  - Buckley,Steven
TI  - "Hole numbers" and other practical investigations: a resource book for mathematics teachers 
SN  - 0521406455 (pbk) :
AV  - QA248 .B41 1992
U1  - 372.7/044 20
PY  - 1992///
CY  - Cambridge, New York, NY USA
PB  - Cambridge University Press
KW  - Mathematics
KW  - Study and teaching (Elementary)
ER  -