Source Data Reference for:

City = Bologna
Time = 1950

City Year Size Size Comment Year Comment Author Title Location
Bologna1925 200,000Tertius ChandlerFour thousand years of urban growthp506
Bologna1950 346,000Tertius ChandlerFour thousand years of urban growthp508
Bologna1951 350,700Jan Lahmeyerhttp://www.populstat.info/n/a