"Igbo Ukwu (Nigeria)" . . "Ibo Civiltà Storia Fonti." . . "Nigeria orientale" . . "Igbo Ukwu (Nigeria) (site archéologique)" . . "Bronze age Nigeria Igbo Ukwu." . . . . "Âge du bronze Nigeria." . . "Âge du bronze Nigéria Igbo-Ukwu." . . "Nigeria." . . . . . . "Igbo-Ukwu an account of archaeological discoveries in eastern Nigeria"@en . . . . . "Igbo-Ukwu : An account of archaeological discoveries in eastern Nigeria" . . . . . . . . "IGBO-UKWU : an account of archaeological discoveries in eastern Nigeria"@en . . . . . "Igbo-Ukwu: an account of archaeological discoveries in eastern Nigeria" . . . . . . . "Igbo-Ukwu; an account of archaeological discoveries in eastern Nigeria" . . . . "Igbo-Ukwu : an account of archaeological discoveries in eastern Nigeria" . . . . . "Igbo-Ukwu : an account of archaeological discoveries in Eastern Nigeria" . . . "University of Ibadan. Institute of African Studies." . . "préhistoire Nigeria." . . "Igbo Nkwa (Nigeria)" . .