APA (7e ed.) Bronvermelding

Não informado. (2021). Farm Economics. Pennsylvannia State University, Cooperative Extension Service.

Chicago (17e ed.) Bronvermelding

Não informado. Farm Economics. University Park, Pa: Pennsylvannia State University, Cooperative Extension Service, 2021.

MLA (8e ed.) Bronvermelding

Não informado. Farm Economics. Pennsylvannia State University, Cooperative Extension Service, 2021.

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