Marx, K., & Engels, F. (1968). Karl Marx and Frederick Engels: Selected works in one volume. Lawrence and Wishart.
Cita Chicago Style (17a ed.)Marx, Karl, y Friedrich Engels. Karl Marx and Frederick Engels: Selected Works in One Volume. London: Lawrence and Wishart, 1968.
Cita MLA (9a ed.)Marx, Karl, y Friedrich Engels. Karl Marx and Frederick Engels: Selected Works in One Volume. Lawrence and Wishart, 1968.
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