00319nas a2200133Ia 4500001001000000008004100010041001300051044000700064100004800071245002000119260001500139362000600154866002500160Perio-224210501s9999 xx 000 0 und d aInglés aUS aWorld Association for Cooperative Education 0aGlobal newslink aWashignton a- a1998 : Vol.11, n° 1