APA (7e ed.) Bronvermelding

Não informado. (1962). Half-yearly progress report. West African Cocoa Research Institute.

Chicago (17e ed.) Bronvermelding

Não informado. Half-yearly Progress Report. Tafo, Gana: West African Cocoa Research Institute, 1962.

MLA (8e ed.) Bronvermelding

Não informado. Half-yearly Progress Report. West African Cocoa Research Institute, 1962.

Let op: Deze citaties zijn niet altijd 100% accuraat.