Statistics of the United States, (including mortality, property, &c.) in 1860 : compiled from the original returns and being the final exhibit of the eighth census, under the direction of the Secretary of the Interior
Electronic reproduction. [Washington, D.C.] : U.S. Census Bureau, 2004. Mode of access: Internet from the Census Bureau Web site. Address as of 05/04/04: http://www2.census.gov/prod2/decennial/documents/1860d-01.pdf; current access is available via PURL.