APA (7e ed.) Bronvermelding

Não informado. (2020). Progress Report. Pennsylvania State University, Agricultural Experiment Station.

Chicago (17e ed.) Bronvermelding

Não informado. Progress Report. University Park, Pa: Pennsylvania State University, Agricultural Experiment Station, 2020.

MLA (8e ed.) Bronvermelding

Não informado. Progress Report. Pennsylvania State University, Agricultural Experiment Station, 2020.

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