Block, Herbert. “Now as I was saying four years ago-.“ Cartoon. The Washington Post. 9 August 1972. Lib. of Cong. 25 June 2015.
< http://www.loc.gov/pictures/item/00652238/>
Block, Herbert. “Our position hasn’t changed at all.” Cartoon. The Washington Post. 17 June 1965. Lib. of Cong. Web. 25 June 2015 <http://www.loc.gov/pictures/item/00652228/
Block, Herbert. “The other ascent into the unknown.” Cartoon. The Washington Post. 10 June 1965. Lib. Of Cong. Web. 25 June 2015.
<http://www.loc.gov/pictures/item/00652227/>
Block, Herbert. "You see, the reason we're in Indochina is to protect us boys in Indochina." Cartoon. The Washington Post. 5 May 1970. Lib. of Cong. 25 June 2015.< http://www.loc.gov/pictures/item/00652236/>
Crockett, Gib. “Whittling him down.” Cartoon. Washington Star Syndicate. 27 April 1965. Lib. of Cong. Web. 25 June 2015.
http://www.loc.gov/pictures/item/acd1996003072/PP/
“Library of Congress” http://www.loc.gov/
“Onward and Upward and Onward and ‐.” Issues of our Times in Cartoons (Highsmith Inc. 1995.). https://ushistorytimelineproject.wordpress.com/about/
“Still Deeper Involvement in Asia.” Issues of our Times in Cartoons (Highsmith Inc. 1995.). https://historyblogproject.wordpress.com/political-cartoons/
“The Slow U.S. Withdrawal.” Issues of our Times in Cartoons (Highsmith Inc. 1995.). http://dkobner.blogspot.com/2011/12/two-policies-in-vietnam-americanization.html
< http://www.loc.gov/pictures/item/00652238/>
Block, Herbert. “Our position hasn’t changed at all.” Cartoon. The Washington Post. 17 June 1965. Lib. of Cong. Web. 25 June 2015 <http://www.loc.gov/pictures/item/00652228/
Block, Herbert. “The other ascent into the unknown.” Cartoon. The Washington Post. 10 June 1965. Lib. Of Cong. Web. 25 June 2015.
<http://www.loc.gov/pictures/item/00652227/>
Block, Herbert. "You see, the reason we're in Indochina is to protect us boys in Indochina." Cartoon. The Washington Post. 5 May 1970. Lib. of Cong. 25 June 2015.< http://www.loc.gov/pictures/item/00652236/>
Crockett, Gib. “Whittling him down.” Cartoon. Washington Star Syndicate. 27 April 1965. Lib. of Cong. Web. 25 June 2015.
http://www.loc.gov/pictures/item/acd1996003072/PP/
“Library of Congress” http://www.loc.gov/
“Onward and Upward and Onward and ‐.” Issues of our Times in Cartoons (Highsmith Inc. 1995.). https://ushistorytimelineproject.wordpress.com/about/
“Still Deeper Involvement in Asia.” Issues of our Times in Cartoons (Highsmith Inc. 1995.). https://historyblogproject.wordpress.com/political-cartoons/
“The Slow U.S. Withdrawal.” Issues of our Times in Cartoons (Highsmith Inc. 1995.). http://dkobner.blogspot.com/2011/12/two-policies-in-vietnam-americanization.html