John P. Reeder, Source, sanction, and salvation: religion and morality in Judaic and Christian traditions, p. 113, 1988. Reeder uses phrase "nonpropertarian" to describe Le Guin's views.
Hans Joachim Morgenthau, (Kenneth W. Thompson, Robert John Myers, Editors), Truth and tragedy: a tribute to Hans J. Morgenthau, Transaction Publishers, p. 165, 1984 ISBN0878558667.
Rob Kroes, Them and us: questions of citizenship in a globalizing world, University of Illinois Press, p. 208, 2000 ISBN0252069099
David Boaz, Cato Institute, Toward liberty: the idea that is changing the world : 25 years of public policy from the Cato Institute, Cato Institute, p. 386, 2002 ISBN1930865279
Laurence Davis, Peter G. Stillman, The new utopian politics of Ursula K. Le Guin's The dispossessed, Lexington Books, p. xviiArchived 2024-02-09 at the Wayback Machine, 2005.
Zwolinski, Matt (4 February 2013). "Liberty and Property". Libertarianism.org. Cato Institute. Archived from the original on 29 August 2023. Retrieved 21 May 2025.
Zwolinski, Matt (11 February 2013). "Against Moralized Freedom". Libertarianism.org. Cato Institute. Archived from the original on 4 May 2025. Retrieved 6 May 2025.
Murray Bookchin, The Greening of Politics: Toward a New Kind of Political Practice, Green Perspectives: Newsletter of the Green Program Project, No. 1 January 1986 [1]Archived 2019-10-01 at the Wayback Machine.
Laurence Davis, Peter G. Stillman, The new utopian politics of Ursula K. Le Guin's The dispossessed, Lexington Books, p. xviiArchived 2024-02-09 at the Wayback Machine, 2005.
Murray Bookchin, The Greening of Politics: Toward a New Kind of Political Practice, Green Perspectives: Newsletter of the Green Program Project, No. 1 January 1986 [1]Archived 2019-10-01 at the Wayback Machine.
Zwolinski, Matt (4 February 2013). "Liberty and Property". Libertarianism.org. Cato Institute. Archived from the original on 29 August 2023. Retrieved 21 May 2025.
Zwolinski, Matt (11 February 2013). "Against Moralized Freedom". Libertarianism.org. Cato Institute. Archived from the original on 4 May 2025. Retrieved 6 May 2025.