Hamen, S. E. (2019). The 12 worst human-made disasters of all time. 12-Story Library.
Cita Chicago Style (17a ed.)Hamen, Susan E. The 12 Worst Human-made Disasters of All Time. Mankato, MN: 12-Story Library, 2019.
Cita MLA (8a ed.)Hamen, Susan E. The 12 Worst Human-made Disasters of All Time. 12-Story Library, 2019.
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