(2016). AGRICULTURAL Productivity in Africa: Trends, patterns, and determinations. International Food Policy Research Institute.
Chicago-čujuhus (17. p.)AGRICULTURAL Productivity in Africa: Trends, Patterns, and Determinations. International Food Policy Research Institute, 2016.
MLA-čujuhus (9. p.)AGRICULTURAL Productivity in Africa: Trends, Patterns, and Determinations. International Food Policy Research Institute, 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.