World book. (1996). World book encyclopedia(vol.1). World book international.
Chicago Edition CitationWorld book. World Book Encyclopedia(vol.1). London: World book international, 1996.
Deismireacht MLAWorld book. World Book Encyclopedia(vol.1). World book international, 1996.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.