APA aipamena

de Sadeleer, N. (2002). Environmental principles: From political slogans to legal rules. Oxford.

Chicago Style aipamena

de Sadeleer, Nicolas. Environmental Principles: From Political Slogans to Legal Rules. New York: Oxford, 2002.

MLA aipamena

de Sadeleer, Nicolas. Environmental Principles: From Political Slogans to Legal Rules. Oxford, 2002.