Purvis, M., & Grainger, A. (2004). Exploring sustainable development: Geographical perspectives. Earthscan.
Chicago Style (17. basım) AtıfPurvis, Martin, ve Alan Grainger. Exploring Sustainable Development: Geographical Perspectives. London ; Sterling, VA: Earthscan, 2004.
MLA (9th ed.) AtıfPurvis, Martin, ve Alan Grainger. Exploring Sustainable Development: Geographical Perspectives. Earthscan, 2004.
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