APA-ийн эшлэл(7 дахь хэвлэлт)
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.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
O'Rourke, Michael, ба Jennifer Wikoff. Snow-related Roof Collapse During the Winter of 2010-2011: Implications for Building Codes. Reston, Virginia: American Society of Civil Engineers, 2014.
MLA -ийн эшлэл (9 дэх хэвлэлт)
O'Rourke, Michael, ба Jennifer Wikoff. Snow-related Roof Collapse During the Winter of 2010-2011: Implications for Building Codes. American Society of Civil Engineers, 2014.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.