Παραπομπή APA

United Nations. Economic Commission for Europe. (1984). Air-borne sulphur pollution: Effects and control. New York: United Nations.

Παραπομπή Chicago Style

United Nations. Economic Commission for Europe. Air-borne Sulphur Pollution: Effects and Control. New York: United Nations, 1984.

Παραπομπή MLA

United Nations. Economic Commission for Europe. Air-borne Sulphur Pollution: Effects and Control. New York: United Nations, 1984.

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