Fujita, M., Krugman, P., & Venables, A. (1999). The spatial economy: Cities, regions, and international trade. MIT Press.
Chicago Style aipamenaFujita, M., P. Krugman, and A. Venables. The Spatial Economy: Cities, Regions, and International Trade. MIT Press, 1999.
MLA aipamenaFujita, M., et al. The Spatial Economy: Cities, Regions, and International Trade. MIT Press, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.