Glass Building Planned for Downtown Philadephia: A New Glass-Clad Building Will Provide Refreshing
Civil Engineering ASCE
http://www.asce.org/cemagazine/Article.aspx?id=23622325651#.UZqBL_EZyuOCivil Engineering ASCE
http://www.asce.org/cemagazine/Article.aspx?id=23622325651#.UZqBL_EZyuO