Fund, and EasterIsland Foundation. 1995. The EasterIsland Bulletins of William Mulloy. New York; Houston: World Monuments Fund; EasterIsland Foundation
Ethnology of EasterIsland. Bernice P. Bishop Museum Bulletin 160. Honolulu: Bishop Museum Press. Katherine Routledge The Mystery of EasterIsland 1919 ISBN 0-932813-48-8