Chicago. Department of Planning, C. a. C. D. (1977). Community areas by census tracts as of 1970 U.S. Census. Dept. of Planning.
Chicago Style (17th ed.) CitationChicago. Department of Planning, City and Community Development. Community Areas by Census Tracts as of 1970 U.S. Census. [Chicago, Ill.]: Dept. of Planning, 1977.
MLA (8th ed.) CitationChicago. Department of Planning, City and Community Development. Community Areas by Census Tracts as of 1970 U.S. Census. Dept. of Planning, 1977.
Warning: These citations may not always be 100% accurate.