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200 00$aOrganic farming $ethe ecological system /$fCharles Francis, editor
210   $cJohn Wiley & Sons, Inc
517   $aOrganic Farming
606   $aOrganic farming$zCanada
606   $aOrganic farming$zUnited States
615  0$aOrganic farming
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676   $a631.5/84
701   $aFrancis$b Charles A.$f1940-$01761406
712 02$aAmerican Society of Agronomy.
712 02$aCrop Science Society of America.
712 02$aSoil Science Society of America.
906   $aBOOK
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