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Dyfyniad MLAMartinsson-Wallin, Helene. Ahu--the Ceremonial Stone Structures of Easter Island: Analyses of Variation and Interpretation of Meanings. Societas Archaeologica Upsaliensis, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.