http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
LC classification, additions and changes
Cataloging Policy and Support Office, Collections Services.
Distributed to depository libraries in paper, ending with issue for list 284 (Oct.-Dec. 2001).
Use copy Restrictions unspecified star MiAaHDL
Electronic reproduction. [S.l.] : HathiTrust Digital Library, 2010. MiAaHDL
digitized 2010 HathiTrust Digital Library committed to preserve pda MiAaHDL
Library of Congress. Office for Subject Cataloging Policy.
Library of Congress classification weekly list (Online)