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Sands, Philippe. (2009). Principles Of International Environmental Law (Ed. 2, cet. 5). New York: Cambridge University Press.

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Sands, Philippe. Principles Of International Environmental Law. Ed. 2, cet. 5 New York: Cambridge University Press, 2009. Text.

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Sands, Philippe. Principles Of International Environmental Law. Ed. 2, cet. 5 New York: Cambridge University Press, 2009. Text.

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Sands, Philippe. Principles Of International Environmental Law. Ed. 2, cet. 5 New York: Cambridge University Press, 2009. Print.