TY  - BOOK
AU  - chopra, j.k.
AU  - chopra, j.k.
TI  - upsc civil services preliminary (optional) examination indian history  
SN  - 81-8357-012-7
U1  - 954 cho-ind 
PY  - 2007///
CY  - new delhi
PB  -  unique publishers
KW  - indian history
N2  - Available
ER  -