Organisation for Economic Co-operation and Development. (2018). OECD environmental performance reviews: Hungary. Organisation for Economic Co-Operation and Development.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Organisation for Economic Co-operation and Development. OECD Environmental Performance Reviews: Hungary. Paris, France: Organisation for Economic Co-Operation and Development, 2018.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Organisation for Economic Co-operation and Development. OECD Environmental Performance Reviews: Hungary. Organisation for Economic Co-Operation and Development, 2018.
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