Παραπομπή σε μορφή APA (7η εκδ.)

European Conference on Environment and Health : Frankfurt. (1990). Environment and health: The European charter and commentary. World Health Organization, Regional Office for Europe.

Παραπομπή σε μορφή Chicago (17η εκδ.)

European Conference on Environment and Health : Frankfurt. Environment and Health: The European Charter and Commentary. Copenhagen: World Health Organization, Regional Office for Europe, 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

European Conference on Environment and Health : Frankfurt. Environment and Health: The European Charter and Commentary. World Health Organization, Regional Office for Europe, 1990.