APA (7th ed.) Citation

Smith, A. (1988). The great rift: Africa's changing valley. BBC Enterprises Ltd.

Chicago Style (17th ed.) Citation

Smith, Anthony. The Great Rift: Africa's Changing Valley. London: BBC Enterprises Ltd, 1988.

MLA (9th ed.) Citation

Smith, Anthony. The Great Rift: Africa's Changing Valley. BBC Enterprises Ltd, 1988.

Warning: These citations may not always be 100% accurate.