CHICAGO TEMPERATURES
Heusgkins, Steven. "Chicago Temperatures." Quick Data Solutions (2011): n.pag. Quick Data. Web. 7 jan 2012. <~www.nowdata.rcc-acis.org/LOT/ pubACIS_results>.
Chicago Population
"Population history of Chicago from 1840 - 1990." Physic b.u. 190. n.pag. Web. 16 jan 2012. <http://physics.bu.edu/~redner/projects/population/cities/chicago.html>.
Chicago Ticket Revenue
Jaid, Henry. "Chicago Cubs." Online MBA. (2013): n. page. Web. 18 Jan. 2011. <http://www.forbes.com/lists/2009/33/baseball-values-09_Chicago-Cubs_335092.html>.
Davin, Alan. "Chicago Cubs." Online MBA. (2013): n. page. Web. 18 Jan. 2013. <http://www.forbes.com/teams/chicago-cubs/>.
Davin, Alan. "Chicago Cubs." Online MBA. (2013): n. page. Web. 18 Jan. 2013. <http://www.forbes.com/teams/chicago-cubs/>.
2012 PORSCHE 911 CARRERA S CABRIOLET PDK
Planck, Clinton. "Porsche 0-60 times." Zero to 60 Times. (2013): n. page. Web. 18 Jan. 2013. <http://www.zeroto60times.com/Porsche-0-60-mph-Times.html>.
Photos
Rebman, Cody. 2012 Porsche. 2012. The Super CarsWeb. 18 Jan 2013. <http://www.thesupercars.org/bugatti/2011-bugatti-veyron-super-sport/>.
Hudson, Craig. New York, Chicago, Boston. 2010. Craig Hudson PhotographyWeb. 18 Jan 2013. <http://www.craighudsonphoto.com/new-york-dc-boston/>.
http://www.edmunds.com/car-reviews/track-tests/track-tested-2012-porsche-911-carrera-s-pdk-vs-7-speed-manual.html
Hudson, Craig. New York, Chicago, Boston. 2010. Craig Hudson PhotographyWeb. 18 Jan 2013. <http://www.craighudsonphoto.com/new-york-dc-boston/>.
http://www.edmunds.com/car-reviews/track-tests/track-tested-2012-porsche-911-carrera-s-pdk-vs-7-speed-manual.html