In Process Materials, a MARC FormatLibrary of Congress (Washington, D.C.). Marc Development Office1975
Motion pictures / Copyright Office, the Library of Congress.Library of Congress. Copyright Office.1949
MARC Manuals Used by the Library of CongressEtats-Unis, Library of Congress Information Systems Office1970PDF17 MB
MARC Code List for Geographic Areasprepared by Network Development and Marc Standards Office, Library of Congress2000
USMARC Code List for Relators, Sources, Description ConventionsLibrary of Congress (Washington, D.C.). Network Development and Marc Standards Office1997
MARC Code List for Languagesprepared by Network Development and Marc Standards Office, Library of Congress2007EN
MARC 21 Format for Community InformationLibrary of Congress. Network Development and Marc Standards Office., Library and Archives Canada. Standards and Support. & 3 more2000EN
MARC 21 Format for Authority DataLibrary of Congress. Network Development and Marc Standards Office., Library and Archives Canada. Standards and Support. & 4 more1999EN
MARC 21 Format for Classification DataLibrary of Congress. Network Development and Marc Standards Office.2011EN
The Library of Congress Illustrated Time Line of the American Civil WarLibrary of Congress2011PDF39 MBEN
Project MARC; an Experiment in Automating Library of Congress Catalog Data.Library of Congress. Information Systems Office1.1967EN