Não informado. United States government organization manual. Office of the Federal Register.
Chicago-viite (17. p.)Não informado. United States Government Organization Manual. Washington: Office of the Federal Register.
MLA-viite (8. p.)Não informado. United States Government Organization Manual. Office of the Federal Register.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.