APA引文

Onwuka, R. I. (1989). Africa in world politics, into the 1990s. Macmillan.

芝加哥风格引文

Onwuka, Ralph I. Africa in World Politics, into the 1990s. Basingstoke, Hants, Eng: Macmillan, 1989.

MLA引文

Onwuka, Ralph I. Africa in World Politics, into the 1990s. Macmillan, 1989.