Ball, M. M. (1969). The Oas in transition. Duke U. Pr..
Tohutoru Kātū Chicago (17th ed.)Ball, M. Margaret. The Oas in Transition. Durham, N.C: Duke U. Pr., 1969.
Tohutoro MLA (9th ed.)Ball, M. Margaret. The Oas in Transition. Duke U. Pr., 1969.
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