@book{219203,
	author = {Library of Congress.},
	title = {MARC 21 concise format for classification data},
	address = {Washington, D.C.},
	note = {Title from home page last updated Nov. 4, 2002(viewed on Jan. 24, 2004).},
	url = {http://purl.access.gpo.gov/GPO/LPS42662}
}