Nwoga, D. I. (1984). Critical perspectives on Christopher Okigbo. Three Continents Press.
芝加哥风格引文Nwoga, Donatus Ibe. Critical Perspectives on Christopher Okigbo. Washington, D.C.: Three Continents Press, 1984.
MLA引文Nwoga, Donatus Ibe. Critical Perspectives on Christopher Okigbo. Three Continents Press, 1984.
警告：这些引文格式不一定是100％准确.