@book{Carter2006,
author = {Carter, S.B. and Gartner, S.S. and Haines, M.R. and Olmstead, A.L. and Sutch, R. and Wright, G.},
title= {Historical Statistics of the United States: Millennial Edition},
year = {2006},
address = {Cambridge, UK},
publisher = {Cambridge University Press},
}