APA (7e ed.) Bronvermelding

Não informado. (1974). Journal of Rural Economics and Development. University of Ibadan, Department of Agricultural Extension Services.

Chicago (17e ed.) Bronvermelding

Não informado. Journal of Rural Economics and Development. Ibadan, Nigeria: University of Ibadan, Department of Agricultural Extension Services, 1974.

MLA (8e ed.) Bronvermelding

Não informado. Journal of Rural Economics and Development. University of Ibadan, Department of Agricultural Extension Services, 1974.

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