00877nas a2200253 i 450099100270344970753620231114121022.0011205m19651992fr || | |fre 0304-2995b11696539-39ule_instPERLE005827ExLCDU 339.5Nature et ressourcesNature et ressources /United Nations educational, scientific and cultural Organization. - 1965-1992Paris,1965-1992Codice CNR: P 00005632LE009 1975-1978; lac.: 1976;1978;UNESCO.b1169653930-09-1308-07-02991002703449707536LE009 Per. G. 561le009-E0.00-no 180000.i1192810408-07-02Nature et ressources792640UNISALENTOle00901-01-01sa -frefr 01