APA-referens (7:e uppl.)

Soyinka, W. The Fourth Stage: Through the Mysteries of Ogun to the Origin of Yoruba Tragedy / Wole Soyinka. African philosophy : an anthology.(1998).

Chicago-referens (17:e uppl.)

Soyinka, Wole. "The Fourth Stage: Through the Mysteries of Ogun to the Origin of Yoruba Tragedy / Wole Soyinka." African Philosophy : An Anthology.(1998) .

MLA-referens (8:e uppl.)

Soyinka, Wole. "The Fourth Stage: Through the Mysteries of Ogun to the Origin of Yoruba Tragedy / Wole Soyinka." African Philosophy : An Anthology.(1998), .