000 00310nam a2200133Ia 4500
008 170101s1993 xx 000 0 und d
020 _a851987451
082 _a632.58 IRR
100 _aIRRI
245 0 _aModelling crop weed interactions
260 _aUK
_bCABI
_c1993
300 _aP.274
942 _2ddc
_cBK
999 _c145231
_d145231