@techreport{Gibson2002,
author = {Gibson, C. and Jung, K. },
title= {Historical Census Statistics on Population Totals by Race, 1790 to 1990, and by Hispanic Origin, 1970 to 1990, for the United States, Regions, Divisions, and States},
year = {2002},
publisher = {Census Bureau, Population Division },
address = {Washington, D.C.},
number = {Working Paper No. 56},
}