Vidal de la Blache, P., Martonne, E. d., & Bingham, M. T. (1950). Principles of human geography (1st ed., reprint.). Constable Publishers.
Cita Chicago Style (17a ed.)Vidal de la Blache, Paul, Emmanuel de Martonne, y Millicent Todd Bingham. Principles of Human Geography. 1st ed., reprint. London: Constable Publishers, 1950.
Cita MLA (9a ed.)Vidal de la Blache, Paul, et al. Principles of Human Geography. 1st ed., reprint. Constable Publishers, 1950.
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