000 00266nam a22001217a 4500
020 _a9788173197406
082 _a577
_bSUB.E
100 _aSubrahmanyam, N S
245 _aEcology/
250 _aSecond edition
260 _aNew Delhi:
_bNarosa,
_c2017.
942 _cBK
999 _c672388
_d672388