File:Johann Heinrich von Thünen Duke.png

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Johann Heinrich von Thünen (1783–1850), contemporary portrait

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Source: The Warren J. Samuels Portrait Collection at Duke University, http://www.econ.duke.edu/Economists/ archive copy at the Wayback Machine

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	06:54, 20 June 2006		310 × 375 (69 KB)	AndreasPraefcke (talk \| contribs)	Johann Heinrich von Thünen (1783–1850), contemporary portrait {{PD-old}} Source: The Warren J. Samuels Portrait Collection at Duke University, http://www.econ.duke.edu/Economists/

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