@book{16271,
	author = {United States},
	title = {Employment and population changes},
	publisher = {For sale by the Supt. of Docs., U.S. Govt. Print. Off.},
	year = {1972]},
	series = {Special economic reports. Series ES20 (72)-1},
	address = {[Washington},
	note = {Cover title.}
}