Heritage of Freedom: A Brief Histoty of the United States. Washington, D.C.: United States Information Agency.
Stile di citazione ChicagoHeritage of Freedom: A Brief Histoty of the United States. Washington, D.C.: United States Information Agency.
Citazione MLAHeritage of Freedom: A Brief Histoty of the United States. Washington, D.C.: United States Information Agency.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.