Robert W July. (1992). A history of the African people. Prospect Hights, Illinois: Waveland.
शिकागो स्टाइल उद्धरणRobert W July. A History of the African People. Prospect Hights, Illinois: Waveland, 1992.
एमएलए उद्धरणRobert W July. A History of the African People. Prospect Hights, Illinois: Waveland, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.