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| | [No title] (Site not responding. Last check: 2007-11-06) |
 | | Additional population and housing variables include items such as age, ancestry, disability, citizenship, education, income, marital status, race, sex, travel time to work, rent, tenure, value of housing unit, number of vehicles, and monthly owner costs. |
 | | One report will be published for each metropolitan area (MA) and one for the non-metropolitan balance of each State, Puerto Rico and the U.S. Virgin Islands showing data for most of the population and housing subjects included in the 1990 census. |
 | | Special area code (7) is used in summary levels 501, 510, 520, 530, 540, 550, 551, 552, and 560 on STF 3D. |
| www.pop.psu.edu /data-archive/codebooks/stf1990/stf3a.codebook (4953 words) |
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