United Nations Environment Programme. Mediterranean Action Plan. (1999). Improving the environment in the Mediterranean: Lessons for sustainable development. Mediterranean Action Plan, United Nations Environment Programme.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations Environment Programme. Mediterranean Action Plan. Improving the Environment in the Mediterranean: Lessons for Sustainable Development. Athens: Mediterranean Action Plan, United Nations Environment Programme, 1999.
Παραπομπή σε μορφή MLA (9th εκδ.)United Nations Environment Programme. Mediterranean Action Plan. Improving the Environment in the Mediterranean: Lessons for Sustainable Development. Mediterranean Action Plan, United Nations Environment Programme, 1999.
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