Marx, K., & Engels, F. (1987). Marx & Engels Collected Works Vol 25: Engels:Dialectics of Nature. Lawrence & Wishart.
Cita Chicago Style (17a ed.)Marx, Karl, y Friedrich Engels. Marx & Engels Collected Works Vol 25: Engels:Dialectics of Nature. London [England]: Lawrence & Wishart, 1987.
Cita MLA (8a ed.)Marx, Karl, y Friedrich Engels. Marx & Engels Collected Works Vol 25: Engels:Dialectics of Nature. Lawrence & Wishart, 1987.
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