00384nam a2200097Ia 4500008004100000082002000041245008200061260004400143505007900187650002000266220204s9999    xx            000 0 und d  a631.11:547bMAD 0aOrganic farming: Current technology and its role in a sustainable agriculture  aMadisonbAmerican Soc of Agronomyc1984  aProceedings of a symposium sponsored by ASA,CSSA and SSSA in Atlanta, 1981  aOrganic farming