Soyinka, W. (1974). Collected Palys. Univ. press.
Chicago Style (17th ed.) ZitazioaSoyinka, Wole. Collected Palys. Oxford: Univ. press, 1974.
MLA (9th ed.) ZitazioaSoyinka, Wole. Collected Palys. Univ. press, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.