APA (7e ed.) Bronvermelding

Não informado. (2000). Futures. Michigan Agricultural Experiment Station.

Chicago (17e ed.) Bronvermelding

Não informado. Futures. East Lansing, Mich: Michigan Agricultural Experiment Station, 2000.

MLA (8e ed.) Bronvermelding

Não informado. Futures. Michigan Agricultural Experiment Station, 2000.

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