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Chicago-čujuhus (17. p.)ebrary, Inc. A Safer Future: Reducing the Impacts of Natural Disasters. Washington, D.C.: National Academy Press, 1991.
MLA-čujuhus (9. p.)ebrary, Inc. A Safer Future: Reducing the Impacts of Natural Disasters. National Academy Press, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.