council decis april conclus agreement negoti european econom commun canada articl xxviii gatt product fruit veget sector eec council european commun regard treati establish european econom commun articl thereof regard recommend commiss canada basi articl xxviii gener agreement tariff trade gatt intent modifi tariff concess product european econom commun princip supplier commiss open negoti canada articl xxviii gatt reach satisfactori agreement countri decid articl agreement negoti european econom commun canada articl xxviii gatt product fruit veget sector approv behalf commun text agreement annex decis articl presid council author design person empow sign agreement order bind commun articl outcom negoti notifi contract parti gatt luxembourg april council presid zamberletti