000 00312nam a22001457a 4500
999 _c12343
_d12343
003 OSt
020 _a9789350781227
082 _a577 S34E
100 _aSharma, P D
245 _aEcology and environment
250 _a13th
260 _aMeeraut
_bRastogi Publications
_c2020
300 _a755p.
942 _2ddc
_cC