Abbott, P. L. (1999). Natural disasters (2nd ed.). Wm. C Brown.
Cita Chicago (17th ed.)Abbott, Patrick L. Natural Disasters. 2nd ed. Boston: Wm. C Brown, 1999.
Cita MLA (9th ed.)Abbott, Patrick L. Natural Disasters. 2nd ed. Wm. C Brown, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.