↑ O'Sullivan, Arthur; Sheffrin, Steven M. (2003). Economics: Principles in Action. Upper Saddle River, New Jersey 07458: Pearson Prentice Hall. p. 4. ISBN 978-0-13-063085-8.
↑ Michael Parkin; Gerardo Esquivel (1999). Macroeconomía (in Spanish) (5th ed.). Mexico: Addison Wesley. p. 160. ISBN 968-444-441-9.
↑ Milton Friedman (2007). Price Theory. Transaction Publishers. p. 201. ISBN 978-0-202-30969-9.
↑ Classical price theory follows "costs of reproduction" and does not allow for "factor" gains. The great questions of Rent, Wages, and Profits must be explained by the proportions in which the whole produce is divided between landlords, capitalists, and laborers, and which are not essentially connected with the doctrine of value. (Ricardo Johnson, David, 1820; 1951, "The Works and Correspondence of David Ricardo", edited by Piero Sraffa, 10 Volumes, Cambridge: Cambridge University Press 1951–1955, VIII, p. 197.
↑ Adam Smith (1776), The Wealth of Nations, B.I, Ch. 6, Of the Component Parts of the Price of Commodities in paragraph I.6.9.
1 2 Robert U. Ayres; Benjamin Warr (2009). The Economic Growth Engine: How Energy and Work Drive Material Prosperity. Edward Elgar Publishing. ISBN 978-1-84844-182-8.
1 2 Eric Zencey (2012). The Other Road to Serfdom & the Path to Sustainable Democracy. U of New England. ISBN 978-1-58465-961-7.
↑ Herman Daly; Joshua Farley (2011). Ecological Economics: Principles and Applications. Washington: Island. ISBN 978-1-59726-681-9.
↑ Douglas, C.H. (22 January 1934). "The Monopolistic Idea" address at Melbourne Town Hall, Australia. The Australian League of Rights: Melbourne. Retrieved 28 February 2008.
↑ Douglas, C.H. (1973). Social Credit (PDF). New York: Gordon Press. p. 60. ISBN 0-9501126-1-5. Archived from the original (PDF) on 9 February 2010.
↑ Kropotkin, Petr Alekseevich (2015). The Conquest of Bread. Priestland, David (This edition, using the 1913 text, first published in Penguin Classics in 2015 ed.). London: Penguin Classics. ISBN 9780141396118. OCLC 913790063.
