Não informado. (1977). What's new in farming. Morgan Grampian.
Style de citation Chicago (17e éd.)Não informado. What's New in Farming. London: Morgan Grampian, 1977.
Style de citation MLA (8e éd.)Não informado. What's New in Farming. Morgan Grampian, 1977.
Attention : ces citations peuvent ne pas être correctes à 100%.