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020 _a8171332080
024 _a14432
037 _cTextual
040 _aCRL
_cCRL
_beng
041 _2eng
_aeng
082 _aG:5, N4
100 _aSharma P. D.
245 0 _aEcology and environment
250 _a6th
260 _aMeerut
_bRastogi Publications India
_c1994
300 _axv,519p. :Glossary p.506-11
_ccm.
650 _aBIOLOGY
942 _hG:5, N4
_cTEXL
_2cc
999 _c974280
_d974280