APA (7th ed.) Citation

Smith, A. (1988). The great rift valley: Africa's changing valley. Sterling Publishing.

Chicago Style (17th ed.) Citation

Smith, Anthony. The Great Rift Valley: Africa's Changing Valley. New York, NY: Sterling Publishing, 1988.

MLA (9th ed.) Citation

Smith, Anthony. The Great Rift Valley: Africa's Changing Valley. Sterling Publishing, 1988.

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