O'Rourke, M., & Wikoff, J. (2014). Snow-related roof collapse during the winter of 2010-2011: Implications for building codes. American Society of Civil Engineers.
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Lua i Stíl Chicago (17ú heag.)
O'Rourke, Michael, agus Jennifer Wikoff. Snow-related Roof Collapse During the Winter of 2010-2011: Implications for Building Codes. Reston, Virginia: American Society of Civil Engineers, 2014.
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Lua MLA (9ú heag.)
O'Rourke, Michael, agus Jennifer Wikoff. Snow-related Roof Collapse During the Winter of 2010-2011: Implications for Building Codes. American Society of Civil Engineers, 2014.
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