000 00301nam a2200121Ia 4500
005 20260325112202.0
008 260325s9999||||xx |||||||||||||| ||und||
082 _a574.5 Sh23E
100 _aSharma, Raj Kumar
245 0 _aEnvironmental science
260 _aNew Delhi
_bK.K. pub.
_c2018
942 _cBK
999 _c271085
_d271085