Schmidtz, D. (2002). Environmental ethnics: What really matters, what really works. Oxford: Oxford University Press.
استشهاد بنمط شيكاغوSchmidtz, David. Environmental Ethnics: What Really Matters, What Really Works. Oxford: Oxford University Press, 2002.
MLA استشهادSchmidtz, David. Environmental Ethnics: What Really Matters, What Really Works. Oxford: Oxford University Press, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.