APA (7th ed.) Citation

Walker, T. S., Hash, T., Rattunde, F., & Weltzien, E. (2016). Improved crop productivity for Africa's drylands. World Bank Group.

Chicago Style (17th ed.) Citation

Walker, T. S., Tom Hash, Fred Rattunde, and Eva Weltzien. Improved Crop Productivity for Africa's Drylands. Washington DC: World Bank Group, 2016.

MLA (8th ed.) Citation

Walker, T. S., et al. Improved Crop Productivity for Africa's Drylands. World Bank Group, 2016.