Reference List
"Andrew Carnegie." Wikipedia. Wikimedia Foundation, 14 Apr. 2013. Web. 14 Apr. 2013.
http://en.wikipedia.org/wiki/Andrew_Carnegie
"Andrew Carnegie." History.com. A&E Television Networks, n.d. Web. 14 Apr. 2013.
http://www.history.com/topics/andrew-carnegie"Andrew Carnegie Video." History.com. A&E Television Networks, n.d. Web. 14 Apr. 2013.
http://www.history.com/topics/andrew-carnegie/videos#andrew-carnegie
"Iron and Steel Industry." History.com. A&E Television Networks, n.d. Web. 14 Apr. 2013.
http://www.history.com/topics/iron-and-steel-industry
"List of Early Skyscrapers." Wikipedia. Wikimedia Foundation, 04 Apr. 2013. Web. 14 Apr. 2013.
http://en.wikipedia.org/wiki/List_of_early_skyscrapers
http://en.wikipedia.org/wiki/Andrew_Carnegie
"Andrew Carnegie." History.com. A&E Television Networks, n.d. Web. 14 Apr. 2013.
http://www.history.com/topics/andrew-carnegie"Andrew Carnegie Video." History.com. A&E Television Networks, n.d. Web. 14 Apr. 2013.
http://www.history.com/topics/andrew-carnegie/videos#andrew-carnegie
"Iron and Steel Industry." History.com. A&E Television Networks, n.d. Web. 14 Apr. 2013.
http://www.history.com/topics/iron-and-steel-industry
"List of Early Skyscrapers." Wikipedia. Wikimedia Foundation, 04 Apr. 2013. Web. 14 Apr. 2013.
http://en.wikipedia.org/wiki/List_of_early_skyscrapers