World Tourism Organization & World Meteorological Organization. (1998). Handbook on natural disaster reduction in tourist areas. World Tourism Organization , World Meteorological Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Tourism Organization και World Meteorological Organization. Handbook on Natural Disaster Reduction in Tourist Areas. [Madrid]: World Tourism Organization , World Meteorological Organization, 1998.
Παραπομπή σε μορφή MLA (9th εκδ.)World Tourism Organization και World Meteorological Organization. Handbook on Natural Disaster Reduction in Tourist Areas. World Tourism Organization , World Meteorological Organization, 1998.
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