TY  - GEN
AU  - Skinner., Dennis
TI  - New Ventures in mathematics: understanding numbers grade 1 
SN  - 0869255266
AV  - QA135.5 SKI 1978 
PY  - 1978///
CY  - Harare
PB  - College press.
KW  - Mathematics
N1  - Text
ER  -