@book{215369,
	author = {United States},
	title = {List of classes of United States government publications available for selection by depository libraries},
	publisher = {Supt. of Docs.},
	year = {1960-},
	address = {Washington},
	note = {Description based on: Dec. 1977; title from caption.},
	url = {http://purl.access.gpo.gov/GPO/LPS1480}
}