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1
Atlas of the 2008 elections
Published 2011An electronic book accessible through the World Wide Web; click to view
Electronic eBook -
2
Atlas of the 2012 elections /
Published 2014An electronic book accessible through the World Wide Web; click to view
Electronic eBook -
3
Immigrants to the United States, 1890
Published 1999An electronic book accessible through the World Wide Web; click to view
Electronic Map -
4
U.S. population change, 1970-1980
Published 1999An electronic book accessible through the World Wide Web; click to view
Electronic Map