council decis juli conclus agreement form exchang letter european econom commun feder republ brazil import manioc brazil supplier countri member gener agreement tariff trade gatt eec council european commun regard treati establish european econom commun articl thereof regard recommend commiss light commun market trend agricultur product measur achiev greater stabil market respect manioc end negoti conduct accord articl xxviii gatt view suspend temporarili commun tariff concess respect import product fall subhead common custom tariff negoti agreement reach brazil capac initi negoti agreement commun restrict quantiti product fall subhead common custom tariff import levi fix maximum ad valorem decid articl agreement form exchang letter european econom commun feder republ brazil import manioc brazil supplier countri member gatt approv behalf commun text agreement attach decis articl presid council author design person empow sign agreement order bind commun brussel juli council presid olesen