@book{228801,
	author = {United States and United States},
	title = {The Constitution of the United States},
	publisher = {U.S. G.P.O.},
	year = {2012]},
	series = {House document},
	address = {[Washington, DC},
	edition = {25th ed.},
	note = {Shipping list no.: 2013-0001-P.},
	url = {http://purl.fdlp.gov/GPO/gpo29578}
}