GEOGRAPHICAL INFORMATION SYSTEMS (GIS) DATA SETS
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下载链接：
https://doi.org/10.7910/DVN/BGZLD9
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资源简介：
These data sets were created as part of The Center for International Development’s ongoing research into the role of geography in economic development (see www.cid.harvard.edu/economic.htm). They have been created between 1998 and 1999.
创建时间：
2010-04-12
