@book{226151,
	author = {United States},
	title = {Black Americans in Congress, 1870-2007},
	publisher = {U.S. G.P.O.},
	year = {2008.},
	address = {Washington, D.C.},
	note = {Shipping list no.},
	url = {http://www.loc.gov/catdir/toc/ecip0812/2008010047.html}
}