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“Interview with Milton Friedman”, Playboy magazine (Feb. 1973)
Source: 1960s, Understanding Media (1964), p.73 of the 1966 Signet paperback edition
April 23, 2018 Free speech fears as Beijing attacks Hong Kong professor https://www.ft.com/content/02439b1e-3efb-11e8-b7e0-52972418fec4
Tennessee True Values Tour remarks, Jackson, Tennessee (4 February 2004) http://www.clark04.com/speeches/040/
Presidency (1977–1981), Farewell Address (1981)
Midgley (2012) Interview with systems thinker Gerald Midgley http://www.shiftn.com/news/detail/interview_with_systems_thinker_gerald_midgley, March 5, 2012.
Report of the Independent Expert on the promotion of a democratic and equitable international order on the adverse impacts of free trade and investment agreements on a democratic and equitable international order http://www.ohchr.org/EN/Issues/IntOrder/Pages/Reports.aspx.
2015, Report submitted to the UN General Assembly
Adam Przeworski and Michael Wallerstein, The American Political Science Review (Mar., 1988)
Kobos, Andrzej (2012). Po drogach uczonych. 5. Polska Akademia Umiejętności. pp. 317–335. ISBN 978-83-7676-127-5.