Pugh, C. D. J. (1996). Sustainability, the environment and urbanization. Earthscan.
Chicago-viite (17. p.)Pugh, Cedric D. J. Sustainability, the Environment and Urbanization. London: Earthscan, 1996.
MLA-viite (8. p.)Pugh, Cedric D. J. Sustainability, the Environment and Urbanization. Earthscan, 1996.
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