"John D. Rockefeller." History.com. A+E Networks, 2010. Web. 31 Jan. 2015. <http://www.history.com/topics/john-d-rockefeller>. Information about John D. Rockefeller's life.
McElwee, Sean, and Lew Daly. What if Economic Growth is No Longer Possible in the 21st Century? The Week. N.p., n.d. Web. 1 Feb. 2015. <http://theweek.com/articles/449050/economic-growth-longer-possible-21st-century>. Article about technology innovation in the 21st Century.
Rockefeller, John D. Interview by United States Industrial Commission. Spartacus Educational. N.p., n.d. Web. 1 Feb. 2015. Primary source from an interview by the United States Industrial Commission in 1899 about advantages for John D. Rockefeller.
Simkin, John. "John D. Rockefeller." Spartacus Educational. N.p., Sept. 1997. Web. 31 Jan. 2015. Information about Rockefeller and about his life as the founder of Standard Oil Company
McElwee, Sean, and Lew Daly. What if Economic Growth is No Longer Possible in the 21st Century? The Week. N.p., n.d. Web. 1 Feb. 2015. <http://theweek.com/articles/449050/economic-growth-longer-possible-21st-century>. Article about technology innovation in the 21st Century.
Rockefeller, John D. Interview by United States Industrial Commission. Spartacus Educational. N.p., n.d. Web. 1 Feb. 2015. Primary source from an interview by the United States Industrial Commission in 1899 about advantages for John D. Rockefeller.
Simkin, John. "John D. Rockefeller." Spartacus Educational. N.p., Sept. 1997. Web. 31 Jan. 2015. Information about Rockefeller and about his life as the founder of Standard Oil Company