TY  - GEN
AU  - Skinner Dennis
TI  - New ventures in mathematics: understanding numbers Grade 6 
SN  - 9780869255827
AV  - QA135.5SKI 1980 
PY  - 1980///
CY  - Harare
PB  - College press.
KW  - Primary Mathematics
N1  - no index
ER  -