Lua APA (7ú heag.)

Gayi, S. K., & Tsowou, K. (2016). Cocoa industry: Integrating small farmers into the global value chain. United Nations.

Lua i Stíl Chicago (17ú heag.)

Gayi, Samuel K., agus Komi Tsowou. Cocoa Industry: Integrating Small Farmers into the Global Value Chain. New York: United Nations, 2016.

Lua MLA (9ú heag.)

Gayi, Samuel K., agus Komi Tsowou. Cocoa Industry: Integrating Small Farmers into the Global Value Chain. United Nations, 2016.

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