APA (7e ed.) Bronvermelding

Não informado. (1920). Milk Industry. National Dairymen's Association.

Chicago (17e ed.) Bronvermelding

Não informado. Milk Industry. London: National Dairymen's Association, 1920.

MLA (8e ed.) Bronvermelding

Não informado. Milk Industry. National Dairymen's Association, 1920.

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