The historical materialist method -

• Ernest Mandel, The Place of Marxism in History, "Appendices": "The Eight Main Periods of the “History” of Marx" and "A Few Events of Marx’s Time", IIRE, Amsterdam, 1983

• Karl Marx, Theses on Feuerbach, 1845

• Karl Marx A Contribution to the Critique of Hegel’s Philosophy of Right, "Introduction" (extract), 1843

• Karl Marx, Abstract from the Preface of A Contribution to the Critique of Political Economy (extract), 1859

• Karl Marx and Friedrich Engels, The German Ideology (extracts), Also:, 1846

• Friedrich Engels, "Introduction" to "Wage Labout and Capital" (Extract), 1891

• Karl Marx, Capital Volume 1, "Chapter Six: The Buying and Selling of Labour-Power" (Extract), 1867

• León Trotsky, Ninety Years of the Communist Manifesto, 1937