000 00313 a2200109 4500
020 _a9789355326324
100 _aRavi P. Agrahari
245 _aScience and Technology for civil services preliminary and main examinatinos
250 _a8th
260 _bMcGraw Hill Education (India) pvt. ltd.
_c2025
942 _cOO
999 _c116269
_d116268