VAN WIEREN, G.; TAYLOR, B. Blue River Declaration: A New Conversation about an Earth-based Ethic. Journal for the Study of Religion, Nature and Culture, [S. l.], v. 6, n. 2, p. 139–142, 2012. DOI: 10.1558/jsrnc.v6i2.139. Disponível em: https://journal.equinoxpub.com/JSRNC/article/view/4674. Acesso em: 22 jan. 2022.