@book{203692,
	author = {Library of Congress. and Library of Congress.},
	title = {Library of Congress classification.},
	publisher = {Library of Congress, Cataloging Distribution Service},
	year = {2007},
	address = {Washington, D.C.},
	edition = {2007 ed},
	note = {"This edition cumulates all additions and changes tosubclass PN through Weekly list 2006/51, dated December 20,2006. Additions and changes made subsequent to that date are published in weekly lists posted on the World Wide Web ... and are also available in Classification Web, the online Web-based edition of the Library of CongressClassification"--T.p. verso}
}