Census of Population and Housing, 1990: Tiger/Census Tract Comparability File
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https://data.socialsciences.cornell.edu/citation?persistentId=doi:10.6077/J5/MYWAP9
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资源简介：
<p>This collection identifies changes in United States census tracts between 1980 and 1990. The data were derived from the Census Bureaus's TIGER database. Counties with 1980 and 1990 census tracts are not included if there were no changes in the census tract boundaries and/or census tract numbers between 1980 and 1990. Also excluded are counties with census tracts defined for the first time in 1990. (Source: downloaded from ICPSR 7/13/10)</p>
<p><strong>Please Note</strong>: This dataset is part of the historical CISER Data Archive Collection and is also available at ICPSR at <a href="https://doi.org/10.3886/ICPSR09810.v1">https://doi.org/10.3886/ICPSR09810.v1</a>. We highly recommend using the ICPSR version as they may make this dataset available in multiple data formats in the future.</p>
提供机构：
CCSS Data Repository
创建时间：
2017-05-10
