FAIRsharing record for: IPUMS National Historical Geographic Information System
收藏DataCite Commons2025-12-01 更新2026-05-03 收录
下载链接：
https://fairsharing.org/10.25504/FAIRsharing.35c5c1
下载链接
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资源简介：
This FAIRsharing record describes: The IPUMS National Historical Geographic Information System (NHGIS) provides free online access to summary statistics and GIS files for U.S. censuses and other nationwide surveys from 1790 through the present.
提供机构：
FAIRsharing
创建时间：
2025-12-01
