000 00409nam a2200145Ia 4500
008 230215s9999||||xx |||||||||||||| ||und||
020 _a9788193422601
082 _a333.7924 SHA
100 _aShankar IAS Academy Book Publications
_914445
245 0 _aEnvironment
250 _a9th
260 _aChennai
_bShankar IAS Academy Book Publications
_c2021
300 _aLVI, 448p.
_b500
650 _aGeneral Books
999 _c194422
_d194422