Martinsson-Wallin, H. (1994). Ahu--the ceremonial stone structures of Easter Island: Analyses of variation and interpretation of meanings. Societas Archaeologica Upsaliensis.
Lua i Stíl Chicago (17ú heag.)Martinsson-Wallin, Helene. Ahu--the Ceremonial Stone Structures of Easter Island: Analyses of Variation and Interpretation of Meanings. Uppsala: Societas Archaeologica Upsaliensis, 1994.
Lua MLA (8ú heag.)Martinsson-Wallin, Helene. Ahu--the Ceremonial Stone Structures of Easter Island: Analyses of Variation and Interpretation of Meanings. Societas Archaeologica Upsaliensis, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.