@book{179732,
	author = {United States},
	title = {Research maps (R-Maps)},
	publisher = {U.S. Department of Housing & Urban Development, Office of Policy Development & Research},
	year = {[1999]},
	address = {[Washington, DC]},
	note = {Shipping list no. 2001-0015-E (v.1); 2001-0023-E (v.3).}
}