- The Marx-Engels Reader (Second Edition) by Karl Marx, Friedrich Engels, 1978-03-17
- The Condition of the Working Class in England (Oxford World's Classics) by Friedrich Engels, 2009-08-03
- The Origin of the Family, Private Property, and the State, in the Light of the Researches of Lewis H. Morgan by Friedrich Engels, 1972-06
- The Origin of the Family, Private Property and the State (Penguin Classics) by Friedrich Engels, 2010-06-29
- Engels as Military Critic: Articles Reprinted from the "Volunteer Journal" and the "Manchester Guardian" of the 1860s by Friedrich Engels, 1976-08-06
- The Communist Manifesto by Karl Marx, Friedrich Engels, 2010-09-18
- Socialism, Utopian and scientific by Friedrich Engels, 2010-09-13
- Marx & Engels: Basic Writings on Politics and Philosophy by Karl Marx, Friedrich Engels, et all 1959-09-03
- Karl Marx Frederick Engels: Collected Works : Engels : 1883-86 (Karl Marx, Frederick Engels: Collected Works) by Karl Marx, Friedrich Engels, 1995-01
- Collected Works of Karl Marx and Friedrich Engels, 1843-44, Vol. 3: By Marx and Engels, Including "Critique of Hegel's Philosophy of Right," the "Manuscripts of 1844" by Karl Marx, Friedrich Engels, 1973-06
- The Role of Force in History by Friedrich Engels, 2006-03-10
- Collected Works of Karl Marx and Friedrich Engels, 1845-47, Vol. 5: Theses on Feuerbach, The German Ideology and Related Manuscripts by Karl Marx, Friedrich Engels, 1976-06
- The Condition of the Working-Class in England in 1844 by Friedrich Engels, 2010-03-07
- The Collected Works of Friedrich Engels (Halcyon Classics) by Friedrich Engels, 2009-10-15
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