"Demilitarized Zone (DMZ)." The Greenhaven Encyclopedia of The Vietnam War. Jeff T. Hay. Ed. Charles Zappia. San Diego: Greenhaven Press, 2004. 73-74. Gale U.S. History In Context. Web. 25 Oct. 2012.
"McNamara Line." The Greenhaven Encyclopedia of The Vietnam War. Jeff T. Hay. Ed. Charles Zappia. San Diego: Greenhaven Press, 2004. 183. Gale U.S. History In Context. Web. 25 Oct. 2012.
"Military Regions." The Greenhaven Encyclopedia of The Vietnam War. Jeff T. Hay. Ed. Charles Zappia. San Diego: Greenhaven Press, 2004. 190-192. Gale U.S. History In Context. Web. 25 Oct. 2012.
Tucker, Spencer. The Encyclopedia of the Vietnam War: A Political, Social, and Military History. Santa Barbara, Calif: ABC-CLIO, 2011. Google Books. Web. 24 Oct 2012.
