1. Sources
1. http://www.trumanlibrary.org/whistlestop/study_collections/coldwar/index.php?action=le
ssons
2. http://sheg.stanford.edu/node/41
3. http://en.wikipedia.org/wiki/NSC-68
4. http://en.wikipedia.org/wiki/Marshall_Plan
5. http://en.wikipedia.org/wiki/Truman_doctrine#Greece
6. http://discover.education.purdue.edu/challenge/PBL/2002_2003/ENL_Progress/PPPrubri
c.htm
7. http://www.pbs.org/wnet/americanmasters/episodes/arthur-miller/mccarthyism/484/
8. http://www.pbs.org/wgbh/amex/macarthur/maps/koreaintro.html
9. http://911review.com/precedent/century/tonkin.html
10. http://www.infoplease.com/encyclopedia/history/tonkin-gulf-resolution.html
11. http://regentsprep.org/regents/core/questions/topics.cfm?course=USHG
12.