00489nam a2200181Ia 4500008004100000020001500041082001600056100002400072245002600096250000600122260004000128300000800168650004100176650003400217653001200251653001900263700002500282170901s1981    xx            000 0 und d  a0471081965  a632.3bS68P  aStaples, C. Richard 0aPlant Disease Control  a1  aNew YorkbJohn Wiley and Sonsc1981  a339  aAgriculture and related technologies  aTechnology (Applied sciences)  aControl  aPlant diseases  aToenniessen, H. Gary