1.-https://www.nasa.gov/mission_pages/apollo/missions/apollo13.html
#.Vipb11VSukoDunbar, Brian. NASA. NASA, n.d. Web. 24 Nov. 2015.
2.-http://airandspace.si.edu/explore-and-learn/topics/apollo/apollo-program/landing-missions/apollo13.cfm
"Apollo 13 (AS-508)." Apollo 13 (AS-508). N.p., n.d. Web. 24 Nov. 2015.
3.-http://www.space.com/17250-apollo-13-facts.html
Contributor, Elizabeth Howell SPACE.com. "Apollo 13: Facts About NASAu0027s Near-Disaster | Space.com." N.p., n.d. Web. 02 Dec. 2015.
4.-http://apollo13.spacelog.org/
"Spacelog Apollo 13." Spacelog. N.p., n.d. Web. 02 Dec. 2015.
5.-http://www.lpi.usra.edu/lunar/missions/apollo/apollo_13/overview/
"Apollo 13 Mission." Overview. N.p., n.d. Web. 02 Dec. 2015.
6.-http://lunar/missions/apollo/apollo_13/
N.p., n.d. Web.
7.-http://www.lpi.usra.edu/lunar/missions/apollo/apollo_13/photography/
N.p., n.d. Web.
8.-http://www.lpi.usra.edu/lunar/missions/apollo/apollo_13/experiments/
N.p., n.d. Web.
9.-http://www.lpi.usra.edu/lunar/missions/apollo/apollo_13/return/
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10.-http://arstechnica.com/science/2015/04/apollo-13-the-mistakes-the-explosion-and-six-hours-of-live-saving-decisions/
Hutchinson, Lee. "45 Years after Apollo 13: Ars Looks at What Went Wrong and Why." N.p., n.d. Web. 02 Dec. 2015.
11.-http://www.zimbio.com/Beyond+the+Box+Office/articles/RmmNOumZ8ei/20+Things+Never+Knew+Apollo+13
"20 Things You Never Knew About 'Apollo 13'" Zimbio. N.p., n.d. Web. 02 Dec. 2015.
12.-http://www.airspacemag.com/ist/?next=/need-to-know/how-hot-was-apollo-13-on-reentry-22877442/
"History, Travel, Arts, Science, People, Places | Air & Space Magazine." History, Travel, Arts, Science, People, Places | Air & Space Magazine. N.p., n.d. Web. 02 Dec. 2015.