Dyfyniad APA
Marx, K. (2001). Preface to a critique of political economy. Electric Book Co..
Dyfyniad Arddull Chicago
Marx, Karl. Preface to a Critique of Political Economy. London: Electric Book Co., 2001.
Dyfyniad MLA
Marx, Karl. Preface to a Critique of Political Economy. Electric Book Co., 2001.
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