000			00302nam a22001337a 4500
003			OSt
008			241003b |||||||| |||| 00| 0 eng d
082			_a632.9 _bP98E
100			_aPyenson ,L.L.
245			_aElements of plant protection
260			_aJ Wiley _c1951
300			_a538
942			_2ddc _cPER
999			_c46171 _d46171