00504     2200181   4500001002100000005001500021035002000036007000300056008004100059082001600100084002000116100001500136245006100151260003800212300002900250650001800279650002500297INLIS00000000000570120250303110150  a0010-0325000003ta250303                g          0 eng    a338.439.542  a338.439.542 FOO1 aVALDES, A.1 aFood security for developing countries /cAlberto Valdes  aColorado :bWestview Press,c1981  a351 p :bills. ;c23 cm. 4aFOOD SECURITY 4aDEVELOPING COUNTRIES