- http://kclibrary.lonestar.edu/decade40.html
- Works Cited (Christina)
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"HowStuffWorks "1940 and 1941 Buicks"" HowStuffWorks. N.p., n.d. Web. 07 May 2014.
"HowStuffWorks "1940 Packard Darrin One-Eighty Victoria Convertible"" HowStuffWorks. N.p., n.d. Web. 07 May 2014.
"HowStuffWorks "1941 Mercury"" HowStuffWorks. N.p., n.d. Web. 07 May 2014.
"Inventor of the Week: Archive." Inventor of the Week: Archive. N.p., n.d. Web. 01 May 2014.
"Konrad Zuses Z3 in Detail." Konrad Zuses Z3 in Detail. N.p., n.d. Web. 01 May 2014.
"Messerschmitt Me 262 Schwalbe (Swallow) - History, Specs and Pictures - Military Aircraft." Messerschmitt Me 262 Schwalbe (Swallow). N.p., n.d. Web. 01 May 2014.
"Navajo Code Talkers Cryptology." Navajo Code Talkers Cryptology. N.p., n.d. Web. 01 May 2014.
"Share Synthetic Rubber." E-WV. N.p., n.d. Web. 01 May 2014.
"She's Electric.. 1940s Battery Car Goes on Sale." - Cars and Motorbikes. N.p., n.d. Web. 07 May 2014.
"Technological Advancements from 1940's to Date." Timetoast. N.p., n.d. Web. 01 May 2014.
Whitmer, Phil. "Technology Inventions in the 1940s." EHow. Demand Media, 26 Mar. 2011. Web. 01 May 2014. - http://ecmweb.com/content/1940s-1940-1949
https://www.h-net.org/reviews/showrev.php?id=1025