000 00283nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a632.91956
_bPLA
245 0 _aPlant protection conference 1956
260 _aLondon
_bButterworths
_c1957
650 _aPlant protection
942 _cBK
999 _c19641
_d19641