Citace podle APA (7th ed.)

Não informado. (1963). Half-yearly progress report. Cocoa Research Institute of Ghana.

Citace podle Chicago (17th ed.)

Não informado. Half-yearly Progress Report. Tafo, Gana: Cocoa Research Institute of Ghana, 1963.

Citace podle MLA (8th ed.)

Não informado. Half-yearly Progress Report. Cocoa Research Institute of Ghana, 1963.

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