000 00333nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aAmerican Phyropathological society
245 0 _aSourcebook of laboratory exercises in plant pathology
260 _bW.H.Freeman and company
260 _c1967
365 _b12.00
942 _cBK
999 _c206027
_d206027