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024 _a73054
037 _cTextual
040 _aCSL
_beng
_cCSL
041 _aeng
082 _aD855121, M1
100 _aMAson C F
245 0 _aBiology of freshwater pollution
260 _aLondon
_bLongman
_c1981
300 _axi,250p.
_ccm.
650 _aFreshwater
942 _hD855121, M1
_cTEXL
_2CC
999 _c22148
_d22148