Notes: | Sets of map sheets by states, counties, and cities (census tracts and block numbering areas). Title from portfolio. Title on map sheets: Census tract/block numbering area outline map (1990). Distributed to all Regional depository libraries and to Illinois depository libraries selecting Item 156-K-13. Shipping list no.: 93-0005-P (pt.1), 93-0007-P (pt.2). "Base map generated using digital data obtained at 1:100,000- scale through a cooperative program with the United States Geological Survey, Department of the Interior." Includes indexes. "1990 CPH-3-15."
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