TY  - BOOK
AU  - Shankar IAS Academy
TI  - UPSC GS Prelims 2001 TO 2020
SN  - 978-81-947210-9-3
U1  - 001 R20 SHA 
PY  - 2020///
CY  - Delhi
PB  - Kiran Prakashan.Pvt.Ltd
ER  -