Universiteat Trier. Zentrum feur Europeaische Studien, Unesco. Management of Social Transformations Program, Hamm, B., & Muttagi, P. K. (1998). Sustainable development and the future of cities. Intermediate Technology Publications.
Chicago-viite (17. p.)Universiteat Trier. Zentrum feur Europeaische Studien, Unesco. Management of Social Transformations Program, Bernd Hamm, ja P. K. Muttagi. Sustainable Development and the Future of Cities. London: Intermediate Technology Publications, 1998.
MLA-viite (9. p.)Universiteat Trier. Zentrum feur Europeaische Studien, et al. Sustainable Development and the Future of Cities. Intermediate Technology Publications, 1998.
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