Ball, M. M. (1969). The Oas in transition. Duke U. Pr..
Cita Chicago (17th ed.)Ball, M. Margaret. The Oas in Transition. Durham, N.C: Duke U. Pr., 1969.
Cita MLA (9th ed.)Ball, M. Margaret. The Oas in Transition. Duke U. Pr., 1969.
Atenció: Aquestes cites poden no estar 100% correctes.