United States. Office of the Federal Register. (1973). United States government manual. Office of the Federal Register.
Citazione stile Chigago Style (17a edizione)United States. Office of the Federal Register. United States Government Manual. Washington, D.C: Office of the Federal Register, 1973.
Citatione MLA (9a ed.)United States. Office of the Federal Register. United States Government Manual. Office of the Federal Register, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.