TY  - GEN
AU  - Singh, Surender
AU  - Parmar, Virinder
TI  - General studies  paper I 2017: for civil services preliminary examination 
SN  - 9789352603466
PY  - 2017///
CY  - Chennai
PB  - Mc Graw Hill education 
KW  - General studies - Competitive examination
ER  -