Arumugam,, E. (2008). Principles of environmental ethics. Sarup.
シカゴスタイル引用形Arumugam,, E. Principles of Environmental Ethics. New Delhi: Sarup, 2008.
MLA引用形式Arumugam,, E. Principles of Environmental Ethics. Sarup, 2008.
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APA引用形式