00587nam a2200145Ia 4500008004100000082001000041100013900051245002800190260005000218300002000268650003900288942000700327952009000334999001700424140224s9999    xx            000 0 und d  a63 M9  aCommittee on the Role of Alternative Farming Methods in Modern Production Agriculture. Board on Agriculture. National Research Council  aAlternative agriculture  aWashington, D.CbNational Academy Pressc1989  axiv, 448p.;ill.  aAGRICULTURAL ECONOMICS,AGRICULTURE  cBK  00104070aKSDbKSDd2014-02-24l0o63 M9p5969r2014-02-24 00:00:00w2014-02-24yBK  c91342d91342