APA (7th ed.) Citation

Chicago Area Geographic Information Study. (1992). 1990 census tracts, Chicago eight county area. CAGIS.

Chicago Style (17th ed.) Citation

Chicago Area Geographic Information Study. 1990 Census Tracts, Chicago Eight County Area. [Chicago]: CAGIS, 1992.

MLA (8th ed.) Citation

Chicago Area Geographic Information Study. 1990 Census Tracts, Chicago Eight County Area. CAGIS, 1992.

Warning: These citations may not always be 100% accurate.