00730nam a2200169 a 4500020001500000040000900015082002600024245011500050260007600165300003400241650002600275650002100301710006100322942001000383999001700393952015000410 a9251032491 cATVA a630 FAO 1990 C144 Or.00aFarming systems development :bguidelines for the conduct of a training course in farming systems development. aRome :bFood and Agriculture Organization of the United Nations,c1990. avii, 259 p. :bill. ;c30 cm. 0aAgricultural systems. 0aFarm management.2 aFood and Agriculture Organization of the United Nations. cAEDBB c18406d18406 0010406630_000000000000000_FAO_1990_C144_OR70982402aLBCbLBCcC144d2019-11-19eA39205o630 FAO 1990 C144 Or.r2019-11-19w2019-11-19yAEDBB