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Dyfyniad Arddull ChicagoEyo, Ekpo, Andr Held, and Ursula Held. Two Thousand Years, Nigerian Art. Lagos: Federal Dept. of Antiquities, 1977.
Dyfyniad MLAEyo, Ekpo, et al. Two Thousand Years, Nigerian Art. Federal Dept. of Antiquities, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.