Hildebrand, P. M. (1994). Compliance in international environmental politics: The case of the European Union. University of Oxford.
Lua i Stíl Chicago (17ú heag.)Hildebrand, Philipp Michael. Compliance in International Environmental Politics: The Case of the European Union. England: University of Oxford, 1994.
Lua MLA (8ú heag.)Hildebrand, Philipp Michael. Compliance in International Environmental Politics: The Case of the European Union. University of Oxford, 1994.
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