Anozie, S. O. (1972). Christopher Okigbo: Creative rhetoric. Evans.
Lua i Stíl Chicago (17ú heag.)Anozie, Sunday Ogbonna. Christopher Okigbo: Creative Rhetoric. London: Evans, 1972.
Lua MLA (9ú heag.)Anozie, Sunday Ogbonna. Christopher Okigbo: Creative Rhetoric. Evans, 1972.
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