↑ThomasT.LansfordThomasT., Communism, Nowy Jork, 1 września 2007, s. 9-24, 36-44, ISBN 978-0761426288(ang.).
↑Alfred B.A.B.EvansAlfred B.A.B., Soviet Marxism-Leninism: The Decline of an Ideology, Santa Barbara: ABC-CLIO, 1993, s. 1-2, ISBN 978-0-275-94763-7(ang.).
↑J.J.WilczynskiJ.J., The Economics of Socialism after World War Two: 1945-1990, 2008, s. 21, ISBN 978-0202362281(ang.).
↑David RamsayD.R.SteeleDavid RamsayD.R., From Marx to Mises: Post Capitalist Society and the Challenge of Economic Calculation, Open Court, wrzesień 1999, s. 45, ISBN 978-0875484495.
↑Mariana V.M.V.RosserMariana V.M.V., J. Jr.J.J.BarkleyJ. Jr.J.J., Comparative Economics in a Transforming World Economy, MIT Press, 23 lipca 2003, s. 14, ISBN 978-0262182348.
↑Socialism, [w:] RaymondR.WilliamsRaymondR., Keywords: A vocabulary of culture and society, revised edition, Oxford University Press, 1983, s. 289, ISBN 978-0-19-520469-8.