Angell, Alan (November 1970). "From Christian Democracy to Marxism?". The World Today. 26 (11). Royal Institute of International Affairs: 488–496. doi:10.2307/40394332.
Hurtado-Torres, Sebastian (December 2016). The Gathering Storm: The United States, Eduardo Frei's Revolution in Liberty and the Polarization of Chilean Politics, 1964-1970. Cornell University Press. p. 176. doi:10.7591/j.ctvh1dn7n. ISBN9781501747182.
Hurtado-Torres, Sebastian (December 2016). The Gathering Storm: The United States, Eduardo Frei's Revolution in Liberty and the Polarization of Chilean Politics, 1964-1970. Cornell University Press. p. 177. doi:10.7591/j.ctvh1dn7n. ISBN9781501747182.
Hurtado-Torres, Sebastian (December 2016). The Gathering Storm: The United States, Eduardo Frei's Revolution in Liberty and the Polarization of Chilean Politics, 1964-1970. Cornell University Press. p. 178. doi:10.7591/j.ctvh1dn7n. ISBN9781501747182.
Hurtado-Torres, Sebastian (December 2016). The Gathering Storm: The United States, Eduardo Frei's Revolution in Liberty and the Polarization of Chilean Politics, 1964-1970. Cornell University Press. p. 180. doi:10.7591/j.ctvh1dn7n. ISBN9781501747182.
Hurtado-Torres, Sebastian (December 2016). The Gathering Storm: The United States, Eduardo Frei's Revolution in Liberty and the Polarization of Chilean Politics, 1964-1970. Cornell University Press. p. 191. doi:10.7591/j.ctvh1dn7n. ISBN9781501747182.
Hurtado-Torres, Sebastian (December 2016). The Gathering Storm: The United States, Eduardo Frei's Revolution in Liberty and the Polarization of Chilean Politics, 1964-1970. Cornell University Press. pp. 186–187. doi:10.7591/j.ctvh1dn7n. ISBN9781501747182.
Grayson, Jr., George W. (April 1969). "Chile's Christian Democratic Party: Power, Factions, and Ideology". The Review of Politics. 31 (2). Cambridge University Press: 147–171. doi:10.2307/1406017.
Michaels, Albert L. (February 1976). "The Alliance for Progress and Chile's "Revolution in Liberty," 1964-1970". Journal of Interamerican Studies and World Affairs. 18 (1). Center for Latin American Studies at the University of Miami: 74–99. doi:10.2307/174817.