00893nam0-22002771i-450-990002528600403321000252860FED01000252860(Aleph)000252860FED0100025286020000920d1971----km-y0itay50------baENGPlanification a Loung TermeDocuments Presentes a le Septieme Reunion des Conseilles Economiques des Gouvernements des Pays du la Commission Economique pour l'EuropeNATIONS UNIES.New YorkNations Unies1971.VII, 223 p.28 cmE/ECE1780Demografia, Movimento naturaleNazioni Unite492339ITUNINARICAUNIMARCBK990002528600403321XXIII-B-33493MASMASPlanification a Loung Terme438634UNINAING01