Attfield, R. (2014). Environmental ethics: An overview for the twenty-first century (Second edition, fully revised and expanded.). Polity Press.
Chicago-referens (17:e uppl.)Attfield, Robin. Environmental Ethics: An Overview for the Twenty-first Century. Second edition, fully revised and expanded. Cambridge, United Kingdom: Polity Press, 2014.
MLA-referens (9:e uppl.)Attfield, Robin. Environmental Ethics: An Overview for the Twenty-first Century. Second edition, fully revised and expanded. Polity Press, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.