000 00309nam a2200109Ia 4500
008 140205s9999 xx 000 0 und d
100 _aJayne T. Maclean
245 _aHerbicides: Ecological effects 1979-85
260 _bUnited States department of agriculture
_aMaryland
_c1985
300 _a19
942 _2ddc
_cTR
999 _c5088
_d5088