@book{191049,
	author = {Hobbs, Frank. and Stoops, Nicole. and United States},
	title = {Demographic trends in the 20th century},
	publisher = {U.S. Census Bureau},
	year = {2002.},
	series = {Census 2000 special reports},
	address = {Washington, DC},
	note = {Cover title.},
	url = {http://purl.access.gpo.gov/GPO/LPS26243}
}