TY  - BOOK
AU  - H.S. Sidhu
AU  - Gurbinder Kaur
AU  - Sachpreet Kuar
TI  - Science & Technology MAPS: for UPSC and state civil services examinations 
SN  - 9788119361496
U1  - 500 
PY  - 2022///
CY  - New Delhi
PB  - Unique Publ.
ER  -