APA引文

Thomas, A. (2020). Improving Crop Yields in Sub-Saharan Africa: What Does the East African Data Say. International Monetary Fund.

芝加哥风格引文

Thomas, Alun. Improving Crop Yields in Sub-Saharan Africa: What Does the East African Data Say. Washington, D.C.: International Monetary Fund, 2020.

MLA引文

Thomas, Alun. Improving Crop Yields in Sub-Saharan Africa: What Does the East African Data Say. International Monetary Fund, 2020.

警告：这些引文格式不一定是100％准确.