APA (7e ed.) Bronvermelding

Não informado. (1964). Bulletin of Rural Economics and Sociology. University of Ibadan, Department of Agricultural Economics and Extension.

Chicago (17e ed.) Bronvermelding

Não informado. Bulletin of Rural Economics and Sociology. Ibadan, Nigeria: University of Ibadan, Department of Agricultural Economics and Extension, 1964.

MLA (8e ed.) Bronvermelding

Não informado. Bulletin of Rural Economics and Sociology. University of Ibadan, Department of Agricultural Economics and Extension, 1964.

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