Purvis,Martin, & Grainger,Alan. (2005). Exploring sustainable development: Geographical perspectives. Earthscan.
Citación estilo ChicagoPurvis,Martin, y Grainger,Alan. Exploring Sustainable Development: Geographical Perspectives. London: Earthscan, 2005.
Cita MLAPurvis,Martin, y Grainger,Alan. Exploring Sustainable Development: Geographical Perspectives. Earthscan, 2005.
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