@book{175198,
	author = {United States},
	title = {County and city data book.},
	publisher = {U.S. Dept. of Commerce, Bureau of the Census},
	year = {1952-},
	address = {[Washington, D.C.]},
	note = {"A statistical abstract supplement."},
	url = {http://www.census.gov/prod/www/ccdb.html}
}