Gottlieb, M. (1976). Long swings in urban development. National Bureau of Economic Research.
Chicago-viite (17. p.)Gottlieb, Manuel. Long Swings in Urban Development. New York: National Bureau of Economic Research, 1976.
MLA-viite (9. p.)Gottlieb, Manuel. Long Swings in Urban Development. National Bureau of Economic Research, 1976.
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