Παραπομπή APA

(1998). Voluntary industry codes of conduct for the environment. Paris: United Nations Environment Programme. Industry and Environment.

Παραπομπή Chicago Style

Voluntary Industry Codes of Conduct for the Environment. Paris: United Nations Environment Programme. Industry and Environment, 1998.

Παραπομπή MLA

Voluntary Industry Codes of Conduct for the Environment. Paris: United Nations Environment Programme. Industry and Environment, 1998.

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