HUGHES, Jennie S.; HOAG, Dana L.; NIPP, Terry E. The Conservation Reserve: A Survey of Research and Interest Groups. Council for Agricultural Science and Technology (CAST), Ames, U.S.A., 1995. DOI: 10.62300/7fsn0w62. Disponível em: https://publications.cast-science.org/CAST/article/view/217. Acesso em: 2 jul. 2026.