Source Data Reference for:

City = Prague
Time = 1950

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Prague	1925	745,000			Tertius Chandler	Four thousand years of urban growth	p505
Prague	1950	922,300			Johan Huizinga	Internationaal aardrijkskundig woordenboek
Prague	1950	921,000			Tertius Chandler	Four thousand years of urban growth	p540
Prague	1950	951,000			Tertius Chandler	Four thousand years of urban growth	p507