Library of Congress. National Preservation Program Office. (1985). National preservation news: A newsletter of the National Preservation Program Office, the Library of Congress. The Office.
Chicago-referens (17:e uppl.)Library of Congress. National Preservation Program Office. National Preservation News: A Newsletter of the National Preservation Program Office, the Library of Congress. Washington, D.C.: The Office, 1985.
MLA-referens (8:e uppl.)Library of Congress. National Preservation Program Office. National Preservation News: A Newsletter of the National Preservation Program Office, the Library of Congress. The Office, 1985.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.