Sands, P., Peel, J., Fabra Aguilar, A., & MacKenzie, R. (2018). Principles of international environmental law (Fourth edition.). Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSands, Philippe, Jacqueline Peel, Adriana Fabra Aguilar, और Ruth MacKenzie. Principles of International Environmental Law. Fourth edition. Cambridge, United Kingdom ; New York, NY, USA: Cambridge University Press, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSands, Philippe, et al. Principles of International Environmental Law. Fourth edition. Cambridge University Press, 2018.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.