(2000). Outline of U.S. government. [Washington, D.C.]: International Information Programs, U.S. Department of State.
Παραπομπή Chicago StyleOutline of U.S. Government. [Washington, D.C.]: International Information Programs, U.S. Department of State, 2000.
Παραπομπή MLAOutline of U.S. Government. [Washington, D.C.]: International Information Programs, U.S. Department of State, 2000.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.