Trích dẫn APA

Organisation for Economic Co-operation and Development. (1979). The state of the environment in OECD member countries. OECD.

Trích dẫn kiểu Chicago

Organisation for Economic Co-operation and Development. The State of the Environment in OECD Member Countries. Paris: OECD, 1979.

Trích dẫn MLA

Organisation for Economic Co-operation and Development. The State of the Environment in OECD Member Countries. OECD, 1979.

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