(1981). World English. Washington, DC.: United states Department of state.
Trích dẫn kiểu ChicagoWorld English. Washington, DC.: United states Department of state, 1981.
Deismireacht MLAWorld English. Washington, DC.: United states Department of state, 1981.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.