TY  - BOOK
AU  - Singh, Surender
AU  - Parmar, Virinder
TI  - General studies for civil services preliminary examination 2022 : GS Paper-1
SN  - 9789354601477
U1  - 001  
PY  - 2021///
CY  - Chennai
PB  - McGraw Hill Education
KW  - General studies-Competitive exams
ER  -