APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, & Morgera, E. (2012). The external environmental policy of the European Union: EU and international law perspectives. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और Elisa Morgera. The External Environmental Policy of the European Union: EU and International Law Perspectives. Cambridge: Cambridge University Press, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और Elisa Morgera. The External Environmental Policy of the European Union: EU and International Law Perspectives. Cambridge University Press, 2012.
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