ebrary, Inc. (1991). A Safer future: Reducing the impacts of natural disasters. National Academy Press.
Chicago-viite (17. p.)ebrary, Inc. A Safer Future: Reducing the Impacts of Natural Disasters. Washington, D.C.: National Academy Press, 1991.
MLA-viite (9. p.)ebrary, Inc. A Safer Future: Reducing the Impacts of Natural Disasters. National Academy Press, 1991.
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