Dyfyniad APA

World Bank & United Nations. (2010). Natural hazards, unnatural disasters: The economics of effective prevention. World Bank.

Dyfyniad Arddull Chicago

World Bank and United Nations. Natural Hazards, Unnatural Disasters: The Economics of Effective Prevention. Washington, D.C.: World Bank, 2010.

Dyfyniad MLA

World Bank and United Nations. Natural Hazards, Unnatural Disasters: The Economics of Effective Prevention. World Bank, 2010.

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