Conference on the National Archives and Research in Historical Geography ( Washington, EUA), & Ehrenberg, R. E. Pattern and Process: V. 9 : Research in Historical Geography. Howard University Press.
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Cita estilo Chicago (17a ed.)
Conference on the National Archives and Research in Historical Geography ( Washington, EUA), y Ralph E. Ehrenberg. Pattern and Process: V. 9 : Research in Historical Geography. Washington, EUA: Howard University Press.
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Cita MLA (9a ed.)
Conference on the National Archives and Research in Historical Geography ( Washington, EUA), y Ralph E. Ehrenberg. Pattern and Process: V. 9 : Research in Historical Geography. Howard University Press.
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