Palmer, R. R. (. R. (2007). A history of the modern world. Boston: McGraw-Hill.
Trích dẫn kiểu ChicagoPalmer, R. R. (Robert Roswell). A History of the Modern World. Boston: McGraw-Hill, 2007.
Deismireacht MLAPalmer, R. R. (Robert Roswell). A History of the Modern World. Boston: McGraw-Hill, 2007.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.