Não informado. (1978). Cataloging Service Bulletin. Library of Congress, Processing Service.
Chicago-viite (17. p.)Não informado. Cataloging Service Bulletin. Washington: Library of Congress, Processing Service, 1978.
MLA-viite (8. p.)Não informado. Cataloging Service Bulletin. Library of Congress, Processing Service, 1978.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.