00257nam a2200109Ia 4500008004100000082001300041100000900054245004100063250000900104260002600113300000800139240913s9999||||xx |||||||||||||| ||und||  a630  SUS  aNULL 0aSustainable Agroecosystem Management  aNULL  bCRC PressaNULLc2009  a301