000 00247nam a22001097a 4500
082 _a571.95
_bWAL.P
100 _aWalker C H
245 _aPrinciples of ecotoxicology
260 _aLondon
_bCRC press
_c2012
650 _aEcotoxicology
942 _cBK
999 _c199648
_d199648