000 00301nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aFRY (William E)
245 0 _aPrinciples of plant disease management
260 _b"Academic Press, Newyork"
260 _c1982
365 _b303.8
942 _cBK
999 _c212366
_d212366