Source Data Reference for:

City = Havana
Time = 1800

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Havana	1775	43,000			Tertius Chandler	Four thousand years of urban growth	p52
Havana	1800	60,000			Tertius Chandler	Four thousand years of urban growth	p540
Havana	1800	60,000			Tertius Chandler	Four thousand years of urban growth	p529
Havana	1800	60,000			Tertius Chandler	Four thousand years of urban growth	p486
Havana	1800	60,000			Tertius Chandler	Four thousand years of urban growth	"p43, p54"