Chers Amis Letter by the World Federation of Democratic Youth (WFDY/PODN) on Indochina and Vietnam - Baldes Patricio; Baldes Patricio; Van Hieu Nguyen; Van Hieu Nguyen; Front National de Liberation du Sud Vietnam / Comite Central; National Liberation Front of Southern Vietnam - Central Committee; F.M.J.D. (Federation Mondiale de la Jeunesse Democratique); World Federation of Democratic Youth (WFDY/PODN)