TY  - BOOK
AU  - Njoroge, Tony
TI  - My pre-unit numberwork workbook 
SN  - Queenex Early Learners
U1  - 372.72 NJO 
PY  - 2012///
CY  - Nairobi
PB  -  Queenex Publishers
KW  - Mathematics - Elementary education
ER  -