(1972). The world almanac and book of facts 1972. New York, N. Y.: Newspaper Enterprise Association.
Trích dẫn kiểu ChicagoThe World Almanac and Book of Facts 1972. New York, N. Y.: Newspaper Enterprise Association, 1972.
Deismireacht MLAThe World Almanac and Book of Facts 1972. New York, N. Y.: Newspaper Enterprise Association, 1972.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.