BURKHARDT, Jeffrey; COMSTOCK, Gary; HARTEL, Peter G.; THOMPSON, Paul B. Ética Agraria. Council for Agricultural Science and Technology (CAST), Ames, U.S.A., 2005. DOI: 10.62300/4qhxpa91. Disponível em: https://publications.cast-science.org/CAST/article/view/168. Acesso em: 1 jul. 2026.