NIEWOLNY, K. L.; FRANZ, N. K. The Call of the Land: An Agrarian Primer for the 21st Century. Journal of Agriculture, Food Systems, and Community Development, Ithaca, NY, USA, v. 1, n. 1, p. 163–164, 2010. DOI: 10.5304/jafscd.2010.011.017. Disponível em: https://www.foodsystemsjournal.org/index.php/fsj/article/view/18. Acesso em: 22 jan. 2022.