Analysis of information sources in references of the Wikipedia article "1968 Democratic National Convention protests" in English language version.
Document Source: "The Strategy of Confrontation: Chicago and the Democratic National Convention – 1968." Report prepared by Raymond F. Simon, corporation counsel, City of Chicago, Sept. 6, 1968, pp. 49–50
Document Source: Rights in Conflict. Convention Week in Chicago, August 25–29, 1968. A Report submitted by Daniel Walker, Director of the Chicago Study Team, to the National Commission on the Causes and Prevention of Violence. Introduction by Max Frankel. New York: E.P. Dutton, 1968. pp. 1, 10–11
Source: Congress, House, Committee on Un-American Activities, Subversive Involvement in Disruption of 1968 Democratic Party National Convention, Part 2, 90th Congress, 2d Session, December 1968 (Washington, DC: US Government Printing Office, 1968).
Club swinging wedges of police moved into the middle of an estimated 9,000 anti-war protesters massed in Grant Park... The crowd... estimated by police at 7,000 persons...
More than 100,000 antiwar demonstrators had been promised by the administration opponents. About 10,000 showed up.
The vanguard of 300,000 members of militant protest groups have begun to converge on this city... City officials... are planning for more than 100,000.
Source: Congress, House, Committee on Un-American Activities, Subversive Involvement in Disruption of 1968 Democratic Party National Convention, Part 2, 90th Congress, 2d Session, December 1968 (Washington, DC: US Government Printing Office, 1968).