1990 census of population and housing. Redistricting data, summary tape file 1A. Puerto Rico [electronic resource].
- Uniform Title:
- Census of population and housing (1990 : Computer file). Redistricting data, summary tape file 1A.
- Washington, DC : U.S. Dept. of Commerce, Bureau of the Census, Data User Services Division, 
- Physical Description:
- 1 computer laser optical disc ; 4 3/4 in.
- Additional Creators:
- United States. Bureau of the Census. Data User Services Division
- Provides data for states and their subareas in hierarchical sequence down to the block level. Has inventory (complete) summaries for place, census tract/BNA, block group, congressional district (101st Congress), and consolidated cities.
- Title from surface of compact disk.
"Issued March 1992."
ISO 9660 format.
- Technical Details:
- System requirements: IBM compatible personal computer; 640K; CD-ROM drive; MS-DOS 3.1 or higher; DOS file manager software (e.g. Microsoft CD-ROM Extensions 2.0 or higher).
Disk characteristics: CD-ROM.
Written in dBase format.
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