APA (7e ed.) Bronvermelding

Não informado. (1920). Agricultural Engineering. American Society of Agricultural Engineers.

Chicago (17e ed.) Bronvermelding

Não informado. Agricultural Engineering. St. Joseph, Mich: American Society of Agricultural Engineers, 1920.

MLA (8e ed.) Bronvermelding

Não informado. Agricultural Engineering. American Society of Agricultural Engineers, 1920.

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