TY  - BOOK
AU  - Singh.
TI  - Improve your social studies std. 1 workbook
SN  - 978-9966-89034--4 9966890343
U1  - 300.713 SIN 
PY  - 2003///
CY  - Nairobi. 
PB  -  Dhillon Publishers
KW  - SOCIAL SCIENCES
ER  -