APA (7e ed.) Bronvermelding

Não informado. (1933). Farm Economist. University of Oxford, Agricultural Economics Research Institute.

Chicago (17e ed.) Bronvermelding

Não informado. Farm Economist. Oxford, Inglaterra: University of Oxford, Agricultural Economics Research Institute, 1933.

MLA (8e ed.) Bronvermelding

Não informado. Farm Economist. University of Oxford, Agricultural Economics Research Institute, 1933.

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