Lands and People. (1976). Lands of People: Africa Vol 1. Grolier incorpovated.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLands and People. Lands of People: Africa Vol 1. New york: Grolier incorpovated, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLands and People. Lands of People: Africa Vol 1. Grolier incorpovated, 1976.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.