@book{192100,
	author = {United States},
	title = {Election reform},
	publisher = {U.S. G.P.O.},
	year = {2003.},
	series = {S. hrg.},
	address = {Washington},
	note = {Vol. 3 has subtitle: Appendix.},
	url = {http://purl.access.gpo.gov/GPO/LPS47318}
}