Lüdtke, A. (2012). History of concepts, new edition: Suitable for a better understanding of modern times? / Alf Lüdtke. Contributions to the history of concepts.
Citace podle Chicago (17th ed.)Lüdtke, Alf. "History of Concepts, New Edition: Suitable for a Better Understanding of Modern Times? / Alf Lüdtke." Contributions to the History of Concepts 2012.
Citace podle MLA (8th ed.)Lüdtke, Alf. "History of Concepts, New Edition: Suitable for a Better Understanding of Modern Times? / Alf Lüdtke." Contributions to the History of Concepts, 2012.
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