TY  - BOOK
AU  - Sach, S. Laroy
TI  - Project to enrich school mathematics
U1  - 372.7 Sa14 
PY  - 1988///
CY  - USA
PB  - : National Council of Teachers of Mathematics, 
KW  - Mathematics
KW  - | Computer programme
KW  - | Mathematics - Study and teaching
ER  -