World bank. (2010). Natural hazards, unNatural disasters: The economics of effective prevention. Washington DC: World bank.
استشهاد بنمط شيكاغوWorld bank. Natural Hazards, UnNatural Disasters: The Economics of Effective Prevention. Washington DC: World bank, 2010.
MLA استشهادWorld bank. Natural Hazards, UnNatural Disasters: The Economics of Effective Prevention. Washington DC: World bank, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.