000			00553nam a2200181Ia 4500
008			130910s9999 xx 000 0 und d
020			_a0890540578
041			_aeng
082			_221st ed. _a632.3 _bCHA
245			_aChallenging problems in plant health _cedited by Thor Kommedahl and Paul H. Williams
260			_aMinnesota : _bThe American Phytopathological Society , _c1983
300			_a538 p.
653			_aPlant disease control
653			_aPlant pathology
653			_aWilliams _aPaul H., ed.
700			_aKommedahl, Thor, ed.
942			_cEN _2ddc
999			_c15806 _d15806