APA (7e ed.) Bronvermelding

Não informado. (1953). Maine farm research. Maine Agricultural Experiment Station.

Chicago (17e ed.) Bronvermelding

Não informado. Maine Farm Research. Orono, Me: Maine Agricultural Experiment Station, 1953.

MLA (8e ed.) Bronvermelding

Não informado. Maine Farm Research. Maine Agricultural Experiment Station, 1953.

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