APA (7e ed.) Bronvermelding

Não informado. (1977). What's new in farming. Morgan Grampian.

Chicago (17e ed.) Bronvermelding

Não informado. What's New in Farming. London: Morgan Grampian, 1977.

MLA (8e ed.) Bronvermelding

Não informado. What's New in Farming. Morgan Grampian, 1977.

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