Tignor, R. (2008). A History of the World. Volume one. McGraw - HillCompanies, Inc.
Trích dẫn kiểu ChicagoTignor, Robert. A History of the World. Volume One. McGraw - HillCompanies, Inc, 2008.
Deismireacht MLATignor, Robert. A History of the World. Volume One. McGraw - HillCompanies, Inc, 2008.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.