a b c For examples of philosophical literature describing the left/right variations of libertarianism, se «Libertarianism» i: Bevir, Mark (2010): Encyclopedia of Political Theory. SAGE. s. 811. Se også: Vallentyne, Peter (5. september 2002): «Libertarianism». Sitat: «...in addition to the better-known version of libertarianism—right-libertarianism—there is also a version known as 'left-libertarianism'».
Wolff, Johnathan (1998): «Libertarianism» i: Routledge Encyclopedia of Philosophy. 4. Taylor & Francis. s. 617. Sitat: «More typically it is associated with a view which champions particularly pure forms of capitalism.»
# Colin Ward (2004). Anarchism: A Very Short Introduction. Oxford University Press. s. 62. «For a century, anarchists have used the word 'libertarian' as a synonym for 'anarchist', both as a noun and an adjective» # David Goodway (2006). Anarchist Seeds Beneath the Snow. Liverpool Press. s. 4. # Paul Kurtz (2003). «Conservative Anarchism: An Interview with Dwight Macdonald». In Michael Wreszin. Interviews with Dwight Macdonald. Conversations with Public Intellectuals [Series]. University Press of Mississippi. s. 82. http://books.google.com/books?id=pgeG-OhdE5sC&pg=PA77&dq=Conservative+Anarchism:+An+Interview+with+Dwight+Macdonald&hl=en&ei=BRUxTfXiLMOblgfa0_SECg&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCMQ6AEwAA#v=onepage&q=libertarianism&f=false. «Well, anarchism (or libertarianism) does not mean «chaos» as the New York Times and most American editorialists, think.» # Charles Bufe (1992). The Heretic's Handbook of Quotations. ??!See Sharp Press. s. iv. # Kathyln Gay, ed (2006). Encyclopedia of Political Anarchy. ABC-CLIO / University of Michigan. s. 126. # George Woodcock (2004). Anarchism: A History of Libertarian Ideas and Movements. Broadview Press. Uses the terms interchangeably, such as on page 10. # Alexandre Skirda (2002). Facing the Enemy: A History of Anarchist Organization from Proudhon to May 1968. AK Press. s. 183. # Frank Fernandez (2001). Cuban Anarchism: The History of a Movement. ??!See Sharp Press. s. 9.
Vallentyne, Peter (5. september 2002): «Libertarianism» i: Zalta, Edward N.: The Stanford Encyclopedia of Philosophy (Spring 2009 red.). Stanford, CA: Stanford University. Sitat: «Both endorse full self-ownership, but they differ with respect to the powers agents have to appropriate unappropriated natural resources (land, air, water, etc.). Right-libertarianism holds that typically such resources may be appropriated by the first person who discovers them, mixes her labor with them, or merely claims them—without the consent of others, and with little or no payment to them. Left-libertarianism, by contrast, holds that unappropriated natural resources belong to everyone in some egalitarian manner. It can, for example, require those who claim rights over natural resources to make a payment to others for the value of those rights. This can provide the basis for a kind of egalitarian redistribution.»
Vallentyne, Peter (5. september 2002): «Libertarianism» i: Zalta, Edward N.: The Stanford Encyclopedia of Philosophy (vårutgave for 2009). Stanford, CA: Stanford University.
