TY  - BOOK
AU  - Ravi P. Agrahari
TI  - Science and Technology : :for Civil Services Preliminary and Main Examinations 
SN  - 9789355326324
U1  - 351.076 AGR 
PY  - 2025///
CY  - Chennai 
PB  - McGraw Hill Education Pvt. Ltd.
KW  - Civil Service Examinations
KW  - Indian Administrative Services
KW  - Science and Technology--UPSC
UR  - Dewey Decimal Classification
ER  -