APA引文

(1992). Indigenous integrated farming systems in the Sahel. Washington, D. C: World Bank.

Trích dẫn kiểu Chicago

Indigenous Integrated Farming Systems in the Sahel. Washington, D. C: World Bank, 1992.

MLA引文

Indigenous Integrated Farming Systems in the Sahel. Washington, D. C: World Bank, 1992.

警告：这些引文格式不一定是100％准确.